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.NET Forum / Languages / Managed C++ / May 2005Verifying 64 bit XP/2003 installation
Hi, Can any one please tell me how to verify programmatically how to find out the OS version (64bit XP/2003)? Thanks much Hi Saran! > Can any one please tell me how to verify programmatically how to find out > the OS version (64bit XP/2003)? From a Win32-App? See: GetVersionEx http://msdn.microsoft.com/library/en-us/sysinfo/base/getversionex.asp See: IsWow64Process http://msdn.microsoft.com/library/en-us/dllproc/base/iswow64process.asp From an Win64-App: If your app is running then you are on the correct OS!  SignatureGreetings Jochen My blog about Win32 and .NET http://blog.kalmbachnet.de/ The problem you can run into with the RC version of Microsoft Windows XP Professional x64 edition version 2003 is it will return the same major and minor version number as Microsoft Windows Server 2003 (maj 5, min 2) rather than the typical XP major and minor version numbers (maj 5, min 1). This may have been fixed with the Gold version of MS Win XP x64 but I haven't had the opportunity to test it yet. --- Joshua > Hi Saran! > [quoted text clipped - 10 lines] > From an Win64-App: > If your app is running then you are on the correct OS! Yes Joshua, what you mentioned is true but you can check for wProductType after checking the version number(5.2) which is true only in 64bit XP(false in 2003 server). I tried out both and it seems that iswon64process seems to be a better choice. > The problem you can run into with the RC version of Microsoft Windows XP > Professional x64 edition version 2003 is it will return the same major and [quoted text clipped - 21 lines] > > From an Win64-App: > > If your app is running then you are on the correct OS! Thanks much Jochen, second choice seems to be better than first one since Minor version in Windows XP 64 bit and Windows Server 2003 is 2. Thanks again > Hi Saran! > [quoted text clipped - 10 lines] > From an Win64-App: > If your app is running then you are on the correct OS! Hi Saran! > Thanks much Jochen, second choice seems to be better than first one since > Minor version in Windows XP 64 bit and Windows Server 2003 is 2. Second choice is only better if you only want to know if you are running an x64. SignatureGreetings Jochen My blog about Win32 and .NET http://blog.kalmbachnet.de/ Hi Jochen, Can you explain me bit more? I didn't get what you meant by "if you are running an x64"? Here is what we want to do: Most of our executables are 32 bit and only few are 64 bit and we would like to programmatically launch 64 bit exe if the OS is 64 bit. Thanks much > Hi Saran! > > Thanks much Jochen, second choice seems to be better than first one since > > Minor version in Windows XP 64 bit and Windows Server 2003 is 2. > > Second choice is only better if you only want to know if you are running > an x64. Hi Saran! > Here is what we want to do: > > Most of our executables are 32 bit and only few are 64 bit and we would like > to programmatically launch 64 bit exe if the OS is 64 bit. For this you need at least 2 exes: App(32).exe and App64.exe The easiest chooice would be: Always start app(32).exe This app can find out if the OS is x64 (with the IsWow64Process function). Then it can launch the app64.exe. SignatureGreetings Jochen My blog about Win32 and .NET http://blog.kalmbachnet.de/ Yes Jochen, That's what we are also trying to do. > Hi Saran! > [quoted text clipped - 8 lines] > out if the OS is x64 (with the IsWow64Process function). Then it can > launch the app64.exe. Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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