Developing For 32bit On 64bit Machine?
Aug 8, 2011
I am moving to a Windows 7 64-bit development machine. Talk about causing problems. I've Googled, but can't seem to find much to help my specific needs. I'm hitting maximum errors in my IDE error list, so I won't start listing them. I've tried targetting both x86 and x64, but I still get errors out the wazzu. Is there a good starting point for me to learn how to do this? or should I just start going through the errors and trying to correct them one by one?
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May 20, 2011
I have some programs written in VB2010 using functions from a DLL. I have compiled and run these programs on a 32bit XP computer and a 32bit Win7 computer and have had no problems accessing the DLL.I have published an installation of these programs and tried running the install on a 64bit Win7 machine and the installation is performed correctly. It installs the programs and copies the required DLL into the same folder. the problem is that whenever I run the software and try to access the DLL I get errors.
The error says something like:
An unhandled exception has occurred in your application. An attempt was made to load a program with an incorrect format. (Exception from HRESULT:0x8007000B)
If I click past it the software runs and all of the forms are loaded properly, but anytime in the software if I try to access the DLL I get the same error.I am declaring functions in the DLL like this:
Public Declare Function OpenDriver Lib "OP815M.DLL" (ByVal handle_Renamed As Integer) As Integer
I have also tried placing the DLL in the system32 directory and also the sysWOW64 directory and that did not help as well.I do recall that hardware drivers need to be properly signed and pass the Microsoft Logo testing. Must I get the DLLs I am using properly signed?
Edit: Also it might be fair to mention that I have used the DLL with another program written in C, which would run in the DOS command line in Windows and it correctly accesses the DLL on a 64bit machine, but just when run from the DOS command line in windows.
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Jan 18, 2010
I'm using the following code to iterate through and find windows containing specific strings in their title bars. I have two projects containing this identical information, yet for some reason - it works when targeted to x64, but FindWindowLike returns 0 always on x86. I need this to run in x86.I am developing this on Windows 7 x64, but it needs to run on my machine as well as XPx32. What I can't fathom is why it compiles/runs on x64 but not x32 (considering I'm targetting user*32*.dll)
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May 22, 2009
I had a vb6 applications which using following dll files 1. shell32.dll 2. user32.dll 3. comdlg32.dll 4. apigid32.dll. It is working fine on vista 32bit OS . Now i am trying to run my application on Vista 64bit OS.
Is it working fine on vista 64bit OS with out any changing in vb6 code?Is there any problem with this above mentioned dlls on Vista 64bit OS?
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Mar 17, 2011
Something that is bugging me which My application is targeted for 32 bit machines but I'm not sure which .NET installation package to use with my deployment: 32, 64 or the package with both.I currently bundle the .NET 32 bit installation with my installer and that works fine. I don't have a 64 bit machine to test with, so my question is what version of the framework will my application need on a 64 bit machine?
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Oct 6, 2010
Ok server is Windows Server 2008 R2. I've already installed other 32 bit applications. I had my own application compiled as ANY CPU, I just copied the folder containing my executable and DLL files to the server. Doing it this way is fine on Windows 2003 Server and other 32 bit operating systems. I registered the DLL files by using regsvr32. When I ran the file, it would come up with an invalid exception error. I compiled it as x86 and tried it again and it crashed immediately without any errors.
So I have VS 2005, application compiled as x86 - what do I do to get it running in Windows Server 2008 R2?Also as a side line, I didn't know that the server was 64bit to start with so I installed 32bit MySQL - should I remove and install 64bit?
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Jan 3, 2011
I'm running Win7 64bit, but I want the applications I make in VB .NET (.NET 3.5, 2008) to be 32bit instead of 64bit. Is there any way to achieve this?
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Jun 6, 2011
I just need to be able to determine whether the OS the program is currently running on is either 32bit or 64bit.
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Jan 17, 2012
[Code]...
I have compiled my app (Just standard windows controld, no third party) on my 64bit system to run on a 32Bit XP system. In have tried all the different settings (x86, x32, All) The error i get is: MyApp.exe has encountered a problem and needs to close. Sorry for the inconvenience. This is my first post here, I hope i havent managed to break any rules
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Mar 15, 2012
We have a winforms appliction that has to talk to an AS400. To do this we imported the IBM.Data.DB2.iSeries classes in the Winforms application and have IBM System I Access for Windows on our machines. It must have the System I Access or it will not talk to the AS/400. Everything works fine on my 64bit development machine. It also works fine on the client's 64bit machine. However when we attempt to install it on a 32bit machine we get a Bad Image format exception. We tried making just an x86 installer instead of any cpu but that did not work (same bad image exception).
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Oct 16, 2009
I developed a Visual Basic program in VS2005 that uses SQL2005 on a 32bit system, which runs perfectly on 32bit systems using Click Once deployment, but whenever I try to load or run same program on any 64bit system, it does not load or run. What do I need to do to make the program run on 64bit systems.
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Oct 13, 2010
I am trying to execute DiskShadow on Server 2008 R2 via Process.Start
[code]...
Now, what's happening is that the Diskshadow script fails with a "com call "(*vssobject)->initializeforbackup" failed." If I then open a command prompt/powershell prompt as administrator and execute "Diskshadow -s diskshadow.txt" manually it works just fine.
If, however, I try c:windowssyswow64Diskshadow -s diskshadow.txt I get the exact same error as when I try to run it via Process.StartSo, there seems to be some 32bit weirdness going on here when I try to run Diskshadow via Process.Start (Even though I am forcing it to use the copy in C:windowssystem32
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Feb 8, 2011
i've finally finished my A2 project by building a program for a real life solution. This program works on the school computers which are 32bit XP but when i try to run it on a Windows 7 64bit system, i can't get it to work after trying various things.
error:The 'Microsoft.Jet.OLEDB.4.0' provider is not registered on the local machine.
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Dec 30, 2011
i have my app code which programed on 32 bit now when i copy it to 64 bit and try to open the project i get this error Quote:Type library importer encountered a property getter 'sessionPlaylistCount' on type 'WMPLib.IWMPNowPlayingHelperDispatch' without a valid return type. The importer will attempt to import this property as a method instead.TlbImp
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Jun 14, 2010
Basically i want to run a program that is created in vb2008 with its compiler properties set to AnyCPUThe programmer has a 32bit os, so he has not recognized that his referenced assemblies are not compatible with 64bit OS and therefore throw system.badimageformatexception on 64bit OS (such as mine; im running windows 7)
now it is my understanding that all 32bit applications can be run on 64bit windows because the WOW64 emulator can run them (just like programs that get installed in the program files x86 directory)so the problem here is that my OS cant recognize that this program must be run in 32bit since that programmer foolishly set the compile options to anycpu i can not contact the programmer and therefore asking him to recompile is not a possible solution.So, how do i run this program as 32 bit on my 64bit OS? how can i manually set 32-bit compatibility? it is not available in compatibility options.I tried running in compatibility mode for windows xp sp2 i tried putting the software in program files x86 folder.
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Oct 11, 2009
I am been working on an a small app that has a Forms.Webbrowser control that navigates to a Adobe Flash program. I have developed the app on Vista 32bit platform and have had no problems. I have sent the app to a couple of people to test out and one is using Vista 64bit and is running into a problem. I know the webbrowser control just uses the underlying base framework of IE. The problem on the 64 bit machine is when the site is navigated to it says that it needs to have Flash installed. When the user goes to Adobe's site it says they need to use a 32bit browser.
As stated on Adobe site here:[URL] the Flash player need to be in a 32 bit browser. What options do I have to be able fix this problem? Is there another control that I can use that would be the same in a 32bit platform and 64bit platform? Besides navigating to the Flash program, the browser also goes to standard web pages.
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Nov 7, 2010
coming from VB6 I've been using the windows API for many years. Now I'd lke to do the same on .NetMy question is, what would happen if I build for 'AnyCPU' and the application calls Kernel32 while running on a 64bit machine ?
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Dec 2, 2009
I wonder if/how to use a 32 bit DLL on a 64 bit machine. The situation is like follows:Autocad Inventor(64 bit program) can launch plugin DLL's. The plugin DLL in this case is programmed with VB.NET 2008 Express edition. As far as I know, I can only choose "Any CPU" when building the DLL with the Express edition. This DLL makes uses of a COM object called Isah IERPlink, a piece of software that is used with a 32 bit package. So in my bin directory this DLL will be added "interop.IERPlink.dll". I guess this DLL is specified for 32 bit CPU's, but I'm not sure.
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Feb 26, 2011
I'm using Visual Studio 2010 Express running on Windows 7 64-bit. I get the same error as detailled in this link [URL] .I need to work with some data to develop the system. I think I can only do this by changing the Copy to Output Directory file property to "Copy if newer" to prevent the debugger from losing it.However this causes TableAdapter.Fill to exit from the sub immediately after executing leaving behind the other code in the form "Add_Load" routine.
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Dec 9, 2010
I develop an application using vb.net.application will run on client server architecture.when we try to execute the program in client side then it will give me an error which is related to sqlclientexception.how can i handle this situation.i used vb.net 3.5 as front end and sql server 2000 as back end.i have done total coding with system.data.sqlclient namespace.
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Dec 21, 2010
I've inherited a lot of custom made software for an office, and, while managing it, I've found it performs differently from machine to machine.I mean, some controls get painted in weird ways in some machines but well in another, or just work differently, like in some machines clicking something selects it, and in the next machine clicking the same thing makes it editable.I suspect, o course, of the myriad of DLL the software loads
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Sep 5, 2011
My app wont start up on any 32bit PCs. It brings an error. Ive tried all the solutions mentioned like going into Compile and changing the Platform, and other things. I have come to the conclusion it Might just be something faulty with my coding. Here is the only place in my code that could be doing it.
[Code]...
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Nov 11, 2009
can vb.net 2008 bet set to only run in 32bit?
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Apr 9, 2011
Our application is one EXE and multiple DLL's. Right now, we are compiling all of them for x86 so we are forcing 32bit because the running size of the application is a lot smaller (memory usage).If we compile the EXE as x86 and the DLL's as anyCPU, on a 64bit machine will the DLL's be 32bit or 64bit?
the reason for my question is if i can compile the DLL's for anyCPU and then have two EXE's, one for 32bit and one for 64bit, then i have only one duplicate program for the 32 or 64 bit change, and if a user wants to run full 64bit they only need to run the 64bit EXE and everything is fine. But if a user is on a 64bit machine but wants to run in 32bit mode, they would run the 32bit EXE.Let me know if this is true. i can't test this as i develop on a 32bit XP machine.
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Mar 9, 2010
I have code to play wave files.
Private Declare Function sndPlaySound Lib "winmm.dll" Alias "sndPlaySoundA" (ByVal lpszSoundName As String, ByVal uFlags As Long) As Long
Private Const SND_ASYNC = &H1
sndPlaySound(WAV_PATH, SND_ASYNC)
[code]....
which is my favorite because of the SEAMLESS loop which I cannot accomplish with the first code.However there is a problem.Both will play .WAV files of any frequency be it 44.1 or 48 so long as its 16bit. My problem is that I have .wav files which are 24 bit, and 32 bit. It is odd because these files play and can be made in a variety of audio applications, but when playback is attempted using the supplied code, nothing but silence!While I know how to re-encode the audio to a new bit depth, I need to play back these specific files.
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Oct 20, 2010
We have a clickonce application that we have been running fine under Windows XP for several years now. Recently a number of machines have been upgraded to Windows 7. The program works perfectly normal under Windows 7 except in one regard and that is when utilising System.Mail. Currently our program will on request build an email and send it to our exchange server which relays the messages onto their intended recipients. The Windows 7 users are finding that their emails are not getting through and one of the messages received is a 5.7.1 unable to relay. Nothing has changed to the credentials, exchange or software itself. Only the operating platform that it is running under. I have a suspicion the error is being caused by some sort of security restriction that only Windows 7 introduces.
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Jan 21, 2008
I want to block a perticular machine from accessing my machine..Both the machines are in LAN..I dont want a perticular machine to access my computer How can i achieve this...I want to do this using VB.NetAny idea....
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Mar 19, 2012
how to change the users color depth, When the user clicks the button.
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Jun 9, 2009
I am trying to build a WSP file in VS2008 on my VB.NET project. How would I go about doing this? I can find a lot of plugins for C# but not VB.NET.
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Jul 27, 2010
I am having a strange issue when building assembly's for one of my modules.I was getting errors when running on 64bit which I traced back to being related to the assembly being 32bit specific. Our modules are(or should) all be built to be bit agnostic.Running CorFlags.exe on the assembly showed the following.
Version : v2.0.50727
CLR Header: 2.5
PE : PE32
[code].....
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