64bit

What are the differences between .NET in 32 or 64 bit systems?

Imagine a pure .NET application which do not uses COM components nor PInvoke. Does it matters if the target system is 32 or 64 bits? ...

What are the pros/cons of 64 bit .NET?

As mentioned in this question/comments there are certain disadvantages when moving from 32 bit .NET to 64 bit .NET. Probably the biggest advantage is the much bigger process address space in the 64 bit world, but what other pros and cons are worth noting? ...

The Double Byte Size in 32 bit and 64 bit OS

Is there a difference in double size when I run my app on 32 and 64 bit environment? If I am not mistaken the double in 32 bit environment will take up 16 digits after 0, whereas the double in 64 bit will take up 32 bit, am I right? ...

Can my 32 bit and 64 bit COM components co-reside on the same machine?

I have a 32 bit COM component that is used mostly by ASP, we also have the 64 bit version. The 64 bit version is functionally identical and it also uses the same ProgID (and as far as I know the same CLSID's etc). Can I install/regsvr the 64 bit version on the same machine as the 32 bit version (obviously in a different folder) and hav...

How to Run 32 Bit .Net Application in 64 Bit environment?

We developed a C#.Net application using .Net Framework 2.0 which works fine in 32 bit Computers. But when I am run my application in 64 Bit environment, it crashes. I need to make my application to run on 64 Bit environment. How do I do this? ...

Has anyone found a video streaming solution for Sharepoint running on Windows Server 2008 64-bit?

Background We're doing a proof-of-concept around Sharepoint 2007. It's installed using VMWare on Windows Server 2008 64-bit. This covers the whole farm which is 2 front-end boxes, one database box and one index server box. Problem We're trying to use the PKS podcast kit from Codeplex. We run into two problems: video vs search. One sit...

How to install Maven 2 plugin for Eclipse on 64-bit linux?

I have Fedora 11 (x86 64) installed with Eclipse. I need a Maven plugin, preferrably m2eclipse, but I cannot find out how to install it. I've tried going through yum, but to no avail (I can't even find any maven plugins). On my other laptop, I've tried installing the plugin using yum on a 32 bit install of Fedora 11, and while the pac...

Can a 64 bit EXE link against 32-bit DLLs?

I ask because I noticed that many 64 bit EXEs link against what appear to be 32-bit DLLs. For example, my 64 bit MFC app links against user32.dll, urlmon.dll, wininet.dll - all of which are 32 bit DLLs that reside in windows\system32. So is this some MS specific wizardry that applies to these DLLs, or is there backward compatability, a...

How will Windows 7 be programmed? Will .NET still be king?

With Windows 7 due to be released at the end of 2009, what changes should we expect? What impact will Windows 7 have on the industry? Are we still going to be using .NET (3.5?) to program Windows? Where does 64-bit figure in all this? We'll definitely be able to use Java for 64-bit stuff, but how is Microsoft going to have us making nat...

How do I build a QT console app in 64 bit on Mac OSX?

I need to build my QT console application as 64 bit. i.e. x86_64 My config file looks like this: CONFIG += qt console debug x86_64 CONFIG -= app_bundle HEADERS = HelperClass.h SOURCES = HelperClass.cpp \ main.cpp The compile goes fine without issue. But, when the build gets to the link step, it complains that I don't ...

Why does strlen() return a 64-bit integer? Am i missing something?

When compiling a 64bit application, why does strlen() return a 64-bit integer? Am i missing somthing? I understand that strlen() returns a size_t type, and by definition this shouldn’t change, but... Why would strlen need to return a 64-bit integer? The function is designed to be used with strings. With that said: Do programmers commo...

What software exists for bridging a 64-bit ODBC app to a 32-bit ODBC driver on windows?

The problem I am looking to solve is communicating from a 64-bit app through ODBC with a datasource for which there only exists a 32-bit ODBC-driver. One solution that would suffice for the moment is using an ODBC-to-ODBC bridge. I found an ODBC-to-ODBC bridging-software created by Easysoft. Are there any alternatives? ...

How do you multiply two 64-bit numbers in x86 assembler?

Possible Duplicate: How can I multiply two 64bit numbers using x86 assembly language? How do you multiply two 64-bit numbers in x86 assembler? This question is important for historical reasons. Presumably, Joel meant 386 assembler. Related question How do you multiply two 64bit numbers in assembly ...

Visual Studio 2008 Project Properties Build Configuration Missing Options

I have a strange problem, and hopefully someone can help me. I have a solution with 13 separate C# projects. I am using Vista x64 to develop on, and I would like to build these projects to target the x86 platform. This is normally quite easy. I can go to solution properties -> Configuration properties and change the platform to x86. The...

How do I compile a 32 bit apache module for a 64 bit platform?

Hi, I am trying to comple mod_auth_kerb for apache on mac os x 10.5.7. I get no compilation errors, but when apache tries to load it: org.apache.httpd[95092]: httpd: Syntax error on line 160 of /private/etc/apache2/httpd.conf: Cannot load /usr/libexec/apache2/mod_auth_kerb.so into server: dlopen(/usr/libexec/apache2/mod_auth_kerb.so, 1...

32-bit crypt component running on 64-bit server with 32-bit IIS app!

I've got a Classic ASP application running on 64-bit Windows Server 2003 in 32-bit emulation on IIS. I'm bringing a COM component over from a 32-bit server and wondered how I would install that to be accessible from the Classic ASP app. I can choose between a 64-bit and a 32-bit version of the component. Do I: install the 32-bit ...

32bit 64bit referenced library

Hi, I am developing an application that has two DLLs one is a 32bit version another is 64bit version, Client is 32bit Server is 64bit My question is is there a way I can say use the 32bit dll when doing Debug/Release and use 64bit dll when I perform a publish. I realize I can solve this problem using NAnt or MSBuild but was wonderin...

Can't test with NUnit on Vista 64bit

Hello, I encountered the problem while trying to run unit testing with NUnit 2.5 in Vista 64bit, MS Visual Studio 2008 SP1, Projects framework 3.5. I have 2 projects in solution, the first - main project and the second - project with tests. Both projects targeted "Any CPU" platform. In fact, I didn't changed anything concerning platform...

Can a VB6 component be compiled to 64 bit?

Is there a way to compile a VB6 component into 64 bits? My feeling is that the answer is "no", but I would like to confirm this. Please, if you can, paste a link to an authorative source that would confirm. ...

How to reserve bottom 4GB VM in an x64 C++ app

Working on porting a 32bit Windows C++ app to 64 bit. Unfortunately, the code uses frequent casting in both directions between DWORD and pointer values. One of the ideas is to reserve the first 4GB of virtual process space as early as possible during process startup so that all subsequent calls to reserve memory will be from virtual add...