What is your computer doing with all that memory? Write your own memory browser

What is your computer doing with all that memory? There are various kinds of memory allocated and used in each process. These include:·         Managed memory (VB.Net, C#, managed C++)·         Heap memory ·         Stacks·         Images (files loaded into a process) VirtualAlloc is the basis of these allocations. If a process needs more of these types of memory, VirtualAlloc is called. You can

Part 2 of 4 : Tips/Tricks for Silverlight Developers.

I wanted to create a series of blog post that gets right to the point and is aimed specifically at Silverlight Developers. The most important things I want this series to answer is :What is it? Why do I care? How do I do it?I hope that you enjoy this series. Let’s get started:Tip/Trick #6)What is it? Create a Notification Window in a Silverlight Out Of Browser Application.Why do I care? Its a

Setting mouse cursor position with WinAPI

Setting the mouse cursor position on a Windows machine with the help of .NET Framework shouldn't be that big of a problem. After all, there is the built-in Cursor class that lets you do that by executing a simple line of code: Cursor.Position = new System.Drawing.Point(0, 0);Of course, here 0 and 0 are the absolute coordinates for the mouse cursor on the screen. One thing to mention about this

BCL Extensions Source Code released on CodePlex

We (Solutions Design, creators of LLBLGen Pro) are in the process of releasing some of our general frameworks as open source, namely BCL Extensions and Algorithmia. Yesterday we released BCL Extensions on CodePlex, using Mercurial as the source-control system. Algorithmia will follow soon, likely later this week. We also re-released our Helpdesk / forum system HnD again to the public, on

How to send an email in Silverlight

IntroductionWelcome again to Dotnetfunda. In this article I am going to demostrate on how to send an email in Silverlight. I have previously wrote an article on how you can do that in asp.net, but now in Silverlight the approach is different and a newbie or even an experienced person can get lost. I am known by writing easly interpreted articles and I will keep on doing that , by even providing

Special features of Linux memory management mechanism

IntroductionIn this article, I am going to describe some general features and some specific ones of the memory management in Linux. It will be mainly on dynamic memory allocation and release, as well as the management of the free memory. The article concerns the Linux kernel versions 2.6.X. Structure of the Linux memory managementThe term “memory management” refers to the mechanisms implemented

SQL injection with raw MD5 hashes (Leet More CTF 2010 injection 300)

The University of Florida Student Infosec Team competed in the Leet More CTF 2010 yesterday. It was a 24-hour challenge-based event sort of like DEFCON quals. Ian and I made the team some ridiculous Team Kernel Sanders shirts at our hackerspace just before the competition started. The good colonel vs. Lenin: FIGHT! Here’s a walkthrough/writeup of one of the challenges.Injection 300: SQL injection

Writing a Managed Internet Explorer Extension: Part 4–Debugging

Picking up where we left of with Writing a Managed Internet Explorer Extension, debugging is where I wanted to go next. I promise I’ll get to more “feature” level stuff, but when stuff goes wrong, and it will, you need to know how to use your toolset. .NET Developers typically write some code and press F5 to see it work. When an exception, the debugger, already attached, steps up to the plate

Bit twiddling: What does warning CS0675 mean?

From the sublime level of continuation passing style we go back to the mundane level of twiddling individual bits.int i = SomeBagOfBits();ulong u = SomeOtherBagOfBits();ulong result = u | i; // combine them together Whoops, that's an error. "Operator | cannot be applied to operands of type int and ulong." There are bitwise-or operators defined on int, uint, long and ulong, but none between int

50 Open Source Apps You Can Use in the Cloud

The cloud computing boom has brought a surge of opportunity to the open source world. Open source developers and users are taking advantage of these opportunities in three key ways.First, many open source applications are now available on a Software-as-a-Service (SaaS) basis. For open source project owners, hosting apps in the cloud offers a new revenue stream. And for users, it means access to

Blend Extensions

Project DescriptionThis shows you how to extend blend. It provides the basic plumbing for adding custom menu items, panes etc. Twitter me any questions : @josefajardoTo extend blend you need to use the undocumnted, un-supported "Addins" api. There are a couple of approaches to getting your addin into blend, the one i like to use is to get the dll's containing the extensions into an "Addins"

Choosing a .NET 4 Content Management System

Utilize, Learn & Contribute to an Open Source, Microsoft .NET based Content Management SystemMy justification for the project is primarily to learn, and at the same time investigate ways to use the CMS to better manage my expanding list of websites and content.  I have used a lot of Open Source software and felt that it would be a good time to give back to the community and contribute to an Open

Loading 1TB in 10 Minutes in SSIS – SQL Server Scalability on high end hardware

This is a live post from the session of Henk van der Valk  at Tech Ed Israel 2010 .This session has great tips and tricks for you in SSIS and is in English (just in case you're reading this blog and don't understand Hebrew :)) Checking for problems when test loading data:Select * from sys.dm_os_wait_stats Number 1 wait: pageiolatch_upSolution: add more spindlesSo - just add more hardware?Number 2

"You Cannot Install Mac OS X on This Volume: How to resolve ?

Most of the Mac users who use the Intel based Mac night have not faced the error but if you try to Install a Mac OS X on the hard drive that uses the Intel based Mac, you will encounter this error.The error message will sound something of this sort. Error: You cannot install Mac OS X on this volumeThis error usually occurs as the Mac Installer doesn't allow you to install on to a disk that uses a

Hundreds of unknown Picasso works discovered in Paris

An extraordinary cache of hundreds of works by Pablo Picasso, painted during his most creative period and worth a conservative estimate of €60m (£50.5m), has been uncovered at the home of a retired French electrician. The collection of 271 paintings, drawings, sketches and lithographs, many of which were previously unknown, dates from 1900 to 1932.Among the works are nine cubist collages worth

Как обмануть NET.Reflector

Сегодня я задумался о том, как обфускаторы скрывают код методов от утилит деобфускации вроде NET.Reflector. Как ни странно, но я не нашел в интернете никакой полезной информации по этому вопросу (возможно, плохо искал) и поэтому пришлось провести маленькое исследования самостоятельно. Под катом краткая заметка о результатах. В примере кода будет снова использоваться Mono.Cecil и генерация кода,

How to Add Google Documents to the Windows Explorer “New” Menu

We’ve already shown you how to create shortcuts to create new Google Docs easily, but what if you want total Windows integration? Here’s how to add them to the Windows Explorer “New” menu for easier access. This should work for all versions of Windows, and you can modify it to work with Google Apps for your Domain as well. Keep reading for the full instructions.Import the Registry HackThe first

Aging Reversed In Mice

The Guardian reports that scientists claim to be a step closer to reversing the aging process after experimental treatment developed by researchers at Harvard Medical School turned weak and feeble old mice into healthy animals by regenerating their aged bodies. 'What we saw in these animals was not a slowing down or stabilization of the aging process. We saw a dramatic reversal – and that was

WikiLeaks: China directed Google hacking

The United States believes that Chinese authorities orchestrated a hacking campaign into computers of Google and Western governments, according to leaked documents cited by The New York Times.The secret cables released by whistleblower site WikiLeaks included one in which the US embassy in Beijing cited "a Chinese contact" who pointed to a government role in the hacking, the newspaper said. "The

How Microsoft IT Leverages Security Enhancements from Windows Server 2008 R2

IntroductionWindows Server 2008 R2 is an incremental upgrade that builds on the Windows Server 2008 foundation. By simultaneously releasing Windows Server 2008 R2 and Windows 7, Microsoft was able to build significant synergy between the two products. This article focuses on some of the technologies made possible by that synergy, including DirectAccess, BranchCache™, Network Access Protection (

Getting Real

Want to build a successful web app? Then it's time to Get Real. Getting Real is a smaller, faster, better way to build software.Getting Real is about skipping all the stuff that represents real (charts, graphs, boxes, arrows, schematics, wireframes, etc.) and actually building the real thing. Getting real is less. Less mass, less software, less features, less paperwork, less of everything that's

Uncovering the Hidden DLL Function Callback Feature

I took a little break today and dropped-in on the REBOL3 AltME world to find an interesting question being asked by Cyphre and a few other users: The word CALLBACK appears in the REBOL binary, but what does it do? Here is some little known information about this feature. Callbacks in DLL Functions (Routines)When using the External Library Interface (DLLs), you can pass a REBOL function to be

If programming languages were religions...

C would be Judaism - it's old and restrictive, but most of the world is familiar with its laws and respects them. The catch is, you can't convert into it - you're either into it from the start, or you will think that it's insanity. Also, when things go wrong, many people are willing to blame the problems of the world on it. Java would be Fundamentalist Christianity - it's theoretically based on C

Swarm: A true distributed programming language

FundamentalsThe fundamental concept behind Swarm is that we should “move the computation, not the data”.The Swarm prototype is a simple stack-based language, akin to a primitive version of the Java bytecode interpreter. I wanted the proof of concept to be quick to implement, while demonstrating that the concept could work for a popular runtime like the JVM or Microsoft’s CLR. Update (Sept 17th 09

SQL with Hibernate Criteria

Hibernate's Criteria is a very comprehensive API which provides the user alot of flexibility to write dynamic queries. But of course nothing is perfect. I came across a situation where i had to truncate a date field in order to get the correct result set without considering the time portion. While going through the Criteria API I did not find anything which allowed me to do this. And hence in the

HTML5 Techniques – Ultimate Collection of Tutorials

As my experience we always close to the latest technologies as we have one step ahead on web development techniques as HTML5. HTML 5 is the advanced version of  HTML.  HTML 5 is giving  new techniques and advanced features/structure in designing. These new features and tags makes designing very easy to create a web page. CSS3 and HTML 5 are capable of revolutionizing the way we design websites.

Revisiting Normalization and Denormalization

In this blog I have done at many articles on Normalization and Denormalization, but I have never put all of the arguments together in one place, so that is what I would like to do today.There are links to related essays on normalization and denormalization at the bottom of this post. This blog has two tables of contents, the Topical Table of Contents and the list of Database Skills.The What and

How to connect to Oracle database using WCF in Silverlight

In this article we will be seeing how to connect to the Oracle database using WCF in Silverlight and will perform a search to retrieve the data from the database, display them in the Silverlight data grid using Visual Studio 2010. In the Oracle database we will be having a table Employee Details with three columns Employee_ID, FirstName and LastName, having more than 10,000 data. Based on the

Optimize Images for High Performance Websites with Visual Studio 2010

This is a new image optimizer in the Visual Studio 2010 Extensions Gallery that uses SmushIt and PunyPNG to optimize images, called Image Optimizer. Image Optimizer essentially reduces the sizes of images by removing a lot of the EXIF and metadata in the file. The size reduction does not affect the quality of the image. For those wanting to build high performance websites that have a lot of

Multiple base addresses for WCF Service

If we do not want to explicitly set address for each EndPoint in our service then we define BASE ADDRESS for the EndPoint exposed for our service In above configuration, we added one more base address using net.tcp protocol. Read more: C# Corner Posted via email from .NET Info

How to Create a Software RAID Array in Windows 7

Instead of having a bunch of separate drives to deal with, why not put them together into one big drive? You can use software RAID to accomplish this, and here’s how to do it.Windows has built in functionality to set up a software RAID (Redundant Array of Inexpensive Disks) without any additional tools. This makes it easy to turn your existing spare hard drives into massive storage or even

DansGuardian

DansGuardian is an award winning Open Source web content filter which currently runs on Linux, FreeBSD, OpenBSD, NetBSD, Mac OS X, HP-UX, and Solaris. It filters the actual content of pages based on many methods including phrase matching, PICS filtering and URL filtering. It does not purely filter based on a banned list of sites like lesser totally commercial filters. DansGuardian is designed to

Prevent Copying files from USB Drive without Disabling USB port

Today one of my friend called me up and was asking about this issue, but he also said that he want the USB drive to read files but don’t want to write files to it or copy from it for some security purpose. Suddenly i thought, is it possible to do it? i was little bit confused about it. Then i got some idea and was testing about it. and finally i got it. Using GP edit or Registry edit, one can

Ubuntu One for Windows – a quick run down of the first beta

Yesterday I got my invite to join the Ubuntu One Windows Beta. I thought I’d show off some screenshots.The installer is a small 12MB .msi installer and installation of it is straightforward.Setting up your Ubuntu One account after installation is just as easy on Ubuntu: you open the app, enter your Ubuntu One sign in details and connect. Read more: OMG! Ubuntu ! Posted via email from .

Company Seeks To Boost Linux Game Development With 3D Engine Giveaway

To support Linux game development, Unigine Corp. announced a competition: it will give a free license for its Unigine engine to a seasoned team willing to work on a native Linux game. The company has been Linux-friendly from the very start; it released advanced GPU benchmarks (Heaven, Tropics, Sanctuary) for Linux before and is working on the OilRush strategy game that supports Linux as well.

MISRA C

MISRA C is a software development standard for the C programming language developed by MISRA (Motor Industry Software Reliability Association). Its aims are to facilitate code safety, portability and reliability in the context of embedded systems, specifically those systems programmed in ISO C. There is also a set of guidelines for MISRA C++. However, there are now more MISRA users outside of the

KDE 4.6 Beta 1 – a first look

The first beta release of KDE SC 4.6 was released yesterday. OpenSUSE had packages up almost immediately, so being curious as to what’s new, I’ve downloaded and upgraded to the new release. These are my impressions thus far. KDE’s release notes tout the following (main) features of the 4.6 release:libplasma now does does something with QML for widgets on devices – why this is the number one

Pirate Bay founders lose appeal: jail time reduced, fines raised

It's been a while since the four Pirate Bay founders lost their case in a Stockholm district court -- April 2009, to be more precise. The verdict was of course appealed, but alas, it was not to be. A Swedish appeals court has upheld the original ruling but changed the sentencing. Three of the quartet have had their jail time reduced: Fredrik Neij gets ten months, Peter Sunde eight months, and

Windows Phone 7 Sales Continue To Struggle

Even with the pre-Christmas buying rush, Microsoft is already desperately offering a new buy one get one free offer similar to the ones they gave for the KIN. According to the article, 'Windows Phone 7 devices can't even manage two per cent of the fortnight's sales.' These aren't official Microsoft figures; they come from online shopping sites. But since Microsoft official sales figures seem

10 Free Server Tools Your Organization Needs

This list of 10 free, essential tools is an amalgam of tools for all sizes of companies and networks. The range of tools covered here are generally cross-platform (i.e., they run on multiple OSes) but all are extremely useful to the system administrator, network administrator and first-level support personnel. While all of these tools are free to download and use in your network without payment

C++0x Dynamic Message Passing

ntroductionSometimes it is useful to have dynamic message passing as in Objective-C. The small header presented below allows any class to contain a dynamic message map that can be used to add methods dynamically to an object. BackgroundObjective-C is deemed more flexible than C++ because it allows a form of dynamic dispatch known as message passing.Message passing is a form of dynamic dispatch

Asymmetric Encryption and Signing with RSA in Silverlight

While Silverlight is a powerful tool for rich client applications, it lacks the ability to perform asymmetric encryption out of the box.  In this article, I'm going to share a cryptography class library I've been working on and show you how to use it to perform standards compliant RSA Encryption in Silverlight that is cross compatible with .NET's built in RSACryptoServiceProvider, allowing you to

Online Tools That Make My Life Easier

Imagine a situation where you’re sitting in front of a colleague’s computer or one that is publicly used. By definition you’re missing all your favorite tools that you’re used to and you can’t install them even if you wanted to. Here’s a short list of online tools that help me a lot when I’m using a computer other than my own. These do not fully replace the desktop equivalents, but they’re good

ModSecurity Advanced Topic of the Week: Mitigating Slow HTTP DoS Attacks

With the recent OWASP AppSec DC presentation on Slow HTTP POST DoS attacks, the issue of web server platform DoS concerns have reached a new high.  Notice that I said, web server platform and not web application code.  The attack scenario raised by slow HTTP POST attack is related to web server software (Apache, IIS, SunONE, etc...) and can not be directly mitigated by the application code.  In

Binding TextBlock, ListBox, RadioButtons to Enums

IntroductionThis post demonstrates different ways to bind WPF controls to an enum property so that changing the selected item on the control automatically updates the value of the property. Examples for a ListBox, ComboBox, a group of RadioButtons and a ListBox of RadioButtons is shown. A way to convert the enum value to a user-friendly string is also shown. Using the CodeYou have an enum

Get Property using Reflection C# +Java

התבקשתי לכתוב ב java class מאוד גדול (שלא ניתן לחלק אותו)ולהפוך אותו ל xml, סיקרן אותי מאוד כיצד כותבים את אותו class גם ב c#: יש לציין שניתן להפוך Class ל XML גם בצורה אחרת דרך XmlSerializer.להלן הקוד ב C#://Class into XML//Get the Properties of the Class and //Create xml elementXElement xml_line = new XElement("je");Type type = MyClass.GetType(); //Get the Type of your ClassPropertyInfo[]

כיווץ מחיצות

שלום לכולם ,כאן ליעד מצוות התמיכה של Microsoft.היום נלמד כיצד להקטין את גודלן של המחיצות בדיסק הקשיח במערכת ההפעלה Windows 7  . ממשק ניהול המחיצות (מנהל הדיסקים) של Windows 7  מספק ממשק נוח וקל לשימוש דרכו ניתן להקליד , להקטין , לערוך ולמחוק מחיצות בדיסק הקשיח שלנו . כיום , ניתן להקטין מחיצה עד לחצי מגודלה המקורי – כלומר במידה וכונן C קיים במערכת ההפעלה ככונן יחיד וגודלו הוא 300GB נוכל להקטינו על

Rapid Dev – a new unit testing tool is born

It’s no secret that the .NET community has a lot to learn as far as unit testing is concerned. One of the contributing factors to unit testing adaptation is tool support – it’s not secret that if developers can crate and run tests easily form the comfort of their development environment (i.e. Visual Studio). But why settle for the bare minimum? wouldn’t you like your tests to run “automatically”

Collections in C

Inspired by Minecraft (like countless other people out there) I decided to give a clone a try to see how this can be accomplished. My last few adventures into the 3D world went through C++ but that always presented me with a problem: The C++ code I write does not scale well to computer games. This time I thought I can probably try to work around the problem by forcing myself to simple C. This

CUDA integration with C#

This article will focus on how to create an unmanaged dll with CUDA code and use it in a C# program. The example will show some differences between execution times of managed, unmanaged and new .NET 4 parallel versions of for() loops used to do computations on arrays. I will show in brief how to configure CUDA environment and run example program. CUDA itself is out of scope for this article

Cache Games - Bringing Access Based Cache Attacks on AES to Practice

Abstract: Side channel attacks on cryptographic systems are attacks exploiting information gained from physical implementations rather than utilizing theoretical weaknesses of a scheme. In particular, during the last years, major achievements were made for the class of access-driven cache-attacks. The source of information leakage for such attacks are the locations of memory accesses performed by

HowTo: Open MSTest with MSBuild

According to the blogpost about „HowTo: build solutions with MSBuild“ I’m going to show you a little example about how to call MSTests.ScenarioThe structure is nearly the same like in this blogpost. As a little add-on I created a new test project: I’ve added one more “RunTests” target to my BuildSolutions.target file where the MSBuild Script is included: BlogThis!

How to consume a web service from within SQL Server using SQL CLR

DISCLAIMER:This is just intended as proof of concept. I do feel that if you wish to consume web services from SQL Server, then you should probably put this code in an assembly outside SQL Server and then call that assembly from the CLR within SQL Server. This will make it more maintainable when, for example, the web service changes. If you then need to rebuild the references etc., it will be

Scrypt Enhanced Cryptography for Silverlight 3+

Project DescriptionThe Scrypt enahnced cryptography library provides additional cryptographic capabilities for Microsoft Silverlight 3+. In this initial release we've added RSA Encryption with support for key sizes from 256-bit to 4096-bit. This library is fully compatible with .NET's built in RSACryptoServiceProvider.For some usage examples, please visit my blog:http://www.dustinhorne.com/post/

Difference between int.Parse and Convert.ToInt32

I know this post sound basic to most of people but still lots of people does not know this. So I decided to post a blog post for this. Both int.Parse and Convert.ToInt32 are used to convert string into the integer but Only difference between them is to Convert.ToInt32 handle null and returns ‘0’ as output and int.parse is not going to handle NULL and will give a Argument Null Exception. Here is

NHibernate and Mapping Aggregates

A few days ago a friend emailed me the following question regarding NHibernate mappings for a solution he’s currently developing:“I have an idea entity that has a collection of comment entities and I need to get the comment count for each idea. I made a massive mistake at the beginning by calling idea.Comments.Count (even worse, I did it in the view!), which due to the collection being

CodeMirror port for Google Web Toolkit

I had been hunting for a good web based code editor when I came across CodeMirror at http://www.codemirror.net.Great project and a lot of hard and smart work indeed. I am a great fan of GWT and try to move anything and everything that comes my way to GWT The result is gCodeMirror project at Google Code and GitHub. If you are interested in directly jumping to a demo, browse to this test URL.Read

Subversion 1.6.15 Released

Just in time for Thanksgiving comes the next Subversion release: Subversion 1.6.15.  In addition to the usual group of bug fixes, this release includes a couple of fixes of import to administrators.  1.6.15 fixes a potential memory leak which can be caused by clients running 'svn blame -g' on large datasets.  Subversion 1.6.15 also fixes a crash in mod_dav_svn which can be caused by using

Silverlight basics. Validation. Part 1. DataAnnotations & ValidatesOnExceptions

Silverlight 4 has some new ways for validate input values (some new approaches to implement validation in your application). First approach is DataAnnotation. In this case you should describe validation rules with attributes. Two other ways (both of them is came with Silverlight 4) – you should implement one of interfaces for your ViewModel: IDataErrorInfo or INotifyDataErrorInfo. I want to talk

NHibernate Profiler Delivers!

Cognitive application awarenessVisual insight into the interaction between your database and application code.Analysis and detection of common pitfalls when using NHibernate. Analysis is delivered via perfectly styled SQL and linkable code execution.Supports NHibernate 1.2.x, 2.0.x and 2.1.xIntroductionNHibernate Profiler is a real-time visual debugger allowing a development team to gain valuable

LLBLGen Profiler

Cognitive application awarenessVisual insight into the interaction between your database and application code.Analysis and detection of common pitfalls when using LLBLGen Pro. Analysis is delivered via perfectly styled SQL and linkable code execution.Supports .Net 3.5 and .Net 4.0IntroductionLLBLGen Profiler is a real-time visual debugger allowing a development team to gain valuable insight and

How to convert Subversion repository to Mercurial (Hg)–it’s easier than you think!

Converting SVN to Mercurial, while keeping all the commit history, might sound like a hard thing to do, but in fact it isn't! This functionality is already built into Mercurial, it’s just not enabled by default. I will be using BitBucket as the Mercurial repository host for this example. You will also need the latest version of TortoiseHg.Conversion is done using the command hg convert, however

How The Garbage Collector Can Cause Random Slowness

In this article, I am going to use a number of tools to show how, because .NET applications run on top of the CLR, things are not always as straight forward as they seem. I’m also going to prove to you that high CPU usage and slow performance in your applications are not always caused by slow code, but sometimes by poor or excessive memory use. The example that I will use is of an ASP.NET website

Installing Visual Studio Versions Side-by-Side

Visual Studio 2010 can be installed on a computer that already has an earlier version of Visual Studio.Note:We recommend that you install Visual Studio versions in the order in which they were released. For example, install Visual Studio 2008 before you install Visual Studio 2010. Before you install versions side by side, review the following conditions:If you open in Visual Studio 2010 a

Dependency Graph in Visual Studio 2010 – View Assembly Dependencies

The Visual Studio 2010 Ultimate Edition has some excellent Architecture tools for modeling new applications, as well as analyze an existing application. One tool amongst them is the ‘Dependency Graph’. As quoted in MSDN, Dependency graphs help you learn more about the organization and relationships in existing code. So let us say that you have just joined a new project and the application has no

Visual Studio 2005/2008/2010 Put Curly Braces On Same Line

I have been looking at some code from Microsoft and I found that in C# they keep curly braces on the same line. This is also the preferred style in Java. Since I also write Java code these days I decided to keep the same style for curly braces. So how do you configure Visual Studio to place curly braces on the same line? It turns out that there are options which allow you to do this. In Visual