Determine the Windows version and whether it is 64bit

Http://msdn.microsoft.com/en-us/library/ms724429 (V = vs.85). aspx

The code used to judge the operating system version!

Getting the system version54 out of 77 rated this helpful-Rate
This topic

The following example usesGetversionex,Getsystemmetrics,Getproductinfo,
AndGetnativesysteminfoFunctions to determine the version information of the currently running operating
System. If compatibility mode is in effect, the example displays the operating system selected forapplication compatibility. The example displays
The information to the console.

To obtain the full version number for the operating system, callGetfileversioninfoFunction on
One of the system DLLs, such as kernel32.dll, then callVerqueryvalueTo obtain the \ stringfileinfo \ <Lang> <codePage> \ productversion
Subblock of the file version information.

Relying on version information is not the best way to test for a feature. Instead, refer to the documentation for the feature of interest. For more information on common techniques for feature detection, see operating
System Version.

If you must require a particle operating system, be sure to use it as a minimum supported version, rather than design the test for the one operating system. this way, your detection code will continue to work on future versions of Windows.

C ++

#include <windows.h>#include <tchar.h>#include <stdio.h>#include <strsafe.h>#pragma comment(lib, "User32.lib")#define BUFSIZE 256typedef void (WINAPI *PGNSI)(LPSYSTEM_INFO);typedef BOOL (WINAPI *PGPI)(DWORD, DWORD, DWORD, DWORD, PDWORD);BOOL GetOSDisplayString( LPTSTR pszOS){   OSVERSIONINFOEX osvi;   SYSTEM_INFO si;   PGNSI pGNSI;   PGPI pGPI;   BOOL bOsVersionInfoEx;   DWORD dwType;   ZeroMemory(&si, sizeof(SYSTEM_INFO));   ZeroMemory(&osvi, sizeof(OSVERSIONINFOEX));   osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);   bOsVersionInfoEx = GetVersionEx((OSVERSIONINFO*) &osvi);   if(bOsVersionInfoEx != NULL ) return 1;   // Call GetNativeSystemInfo if supported or GetSystemInfo otherwise.   pGNSI = (PGNSI) GetProcAddress(      GetModuleHandle(TEXT("kernel32.dll")),       "GetNativeSystemInfo");   if(NULL != pGNSI)      pGNSI(&si);   else GetSystemInfo(&si);   if ( VER_PLATFORM_WIN32_NT==osvi.dwPlatformId &&         osvi.dwMajorVersion > 4 )   {      StringCchCopy(pszOS, BUFSIZE, TEXT("Microsoft "));      // Test for the specific product.      if ( osvi.dwMajorVersion == 6 )      {         if( osvi.dwMinorVersion == 0 )         {            if( osvi.wProductType == VER_NT_WORKSTATION )                StringCchCat(pszOS, BUFSIZE, TEXT("Windows Vista "));            else StringCchCat(pszOS, BUFSIZE, TEXT("Windows Server 2008 " ));         }         if ( osvi.dwMinorVersion == 1 )         {            if( osvi.wProductType == VER_NT_WORKSTATION )                StringCchCat(pszOS, BUFSIZE, TEXT("Windows 7 "));            else StringCchCat(pszOS, BUFSIZE, TEXT("Windows Server 2008 R2 " ));         }                  pGPI = (PGPI) GetProcAddress(            GetModuleHandle(TEXT("kernel32.dll")),             "GetProductInfo");         pGPI( osvi.dwMajorVersion, osvi.dwMinorVersion, 0, 0, &dwType);         switch( dwType )         {            case PRODUCT_ULTIMATE:               StringCchCat(pszOS, BUFSIZE, TEXT("Ultimate Edition" ));               break;            case PRODUCT_PROFESSIONAL:               StringCchCat(pszOS, BUFSIZE, TEXT("Professional" ));               break;            case PRODUCT_HOME_PREMIUM:               StringCchCat(pszOS, BUFSIZE, TEXT("Home Premium Edition" ));               break;            case PRODUCT_HOME_BASIC:               StringCchCat(pszOS, BUFSIZE, TEXT("Home Basic Edition" ));               break;            case PRODUCT_ENTERPRISE:               StringCchCat(pszOS, BUFSIZE, TEXT("Enterprise Edition" ));               break;            case PRODUCT_BUSINESS:               StringCchCat(pszOS, BUFSIZE, TEXT("Business Edition" ));               break;            case PRODUCT_STARTER:               StringCchCat(pszOS, BUFSIZE, TEXT("Starter Edition" ));               break;            case PRODUCT_CLUSTER_SERVER:               StringCchCat(pszOS, BUFSIZE, TEXT("Cluster Server Edition" ));               break;            case PRODUCT_DATACENTER_SERVER:               StringCchCat(pszOS, BUFSIZE, TEXT("Datacenter Edition" ));               break;            case PRODUCT_DATACENTER_SERVER_CORE:               StringCchCat(pszOS, BUFSIZE, TEXT("Datacenter Edition (core installation)" ));               break;            case PRODUCT_ENTERPRISE_SERVER:               StringCchCat(pszOS, BUFSIZE, TEXT("Enterprise Edition" ));               break;            case PRODUCT_ENTERPRISE_SERVER_CORE:               StringCchCat(pszOS, BUFSIZE, TEXT("Enterprise Edition (core installation)" ));               break;            case PRODUCT_ENTERPRISE_SERVER_IA64:               StringCchCat(pszOS, BUFSIZE, TEXT("Enterprise Edition for Itanium-based Systems" ));               break;            case PRODUCT_SMALLBUSINESS_SERVER:               StringCchCat(pszOS, BUFSIZE, TEXT("Small Business Server" ));               break;            case PRODUCT_SMALLBUSINESS_SERVER_PREMIUM:               StringCchCat(pszOS, BUFSIZE, TEXT("Small Business Server Premium Edition" ));               break;            case PRODUCT_STANDARD_SERVER:               StringCchCat(pszOS, BUFSIZE, TEXT("Standard Edition" ));               break;            case PRODUCT_STANDARD_SERVER_CORE:               StringCchCat(pszOS, BUFSIZE, TEXT("Standard Edition (core installation)" ));               break;            case PRODUCT_WEB_SERVER:               StringCchCat(pszOS, BUFSIZE, TEXT("Web Server Edition" ));               break;         }      }      if ( osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 2 )      {         if( GetSystemMetrics(SM_SERVERR2) )            StringCchCat(pszOS, BUFSIZE, TEXT( "Windows Server 2003 R2, "));         else if ( osvi.wSuiteMask & VER_SUITE_STORAGE_SERVER )            StringCchCat(pszOS, BUFSIZE, TEXT( "Windows Storage Server 2003"));         else if ( osvi.wSuiteMask & VER_SUITE_WH_SERVER )            StringCchCat(pszOS, BUFSIZE, TEXT( "Windows Home Server"));         else if( osvi.wProductType == VER_NT_WORKSTATION &&                  si.wProcessorArchitecture==PROCESSOR_ARCHITECTURE_AMD64)         {            StringCchCat(pszOS, BUFSIZE, TEXT( "Windows XP Professional x64 Edition"));         }         else StringCchCat(pszOS, BUFSIZE, TEXT("Windows Server 2003, "));         // Test for the server type.         if ( osvi.wProductType != VER_NT_WORKSTATION )         {            if ( si.wProcessorArchitecture==PROCESSOR_ARCHITECTURE_IA64 )            {                if( osvi.wSuiteMask & VER_SUITE_DATACENTER )                   StringCchCat(pszOS, BUFSIZE, TEXT( "Datacenter Edition for Itanium-based Systems" ));                else if( osvi.wSuiteMask & VER_SUITE_ENTERPRISE )                   StringCchCat(pszOS, BUFSIZE, TEXT( "Enterprise Edition for Itanium-based Systems" ));            }            else if ( si.wProcessorArchitecture==PROCESSOR_ARCHITECTURE_AMD64 )            {                if( osvi.wSuiteMask & VER_SUITE_DATACENTER )                   StringCchCat(pszOS, BUFSIZE, TEXT( "Datacenter x64 Edition" ));                else if( osvi.wSuiteMask & VER_SUITE_ENTERPRISE )                   StringCchCat(pszOS, BUFSIZE, TEXT( "Enterprise x64 Edition" ));                else StringCchCat(pszOS, BUFSIZE, TEXT( "Standard x64 Edition" ));            }            else            {                if ( osvi.wSuiteMask & VER_SUITE_COMPUTE_SERVER )                   StringCchCat(pszOS, BUFSIZE, TEXT( "Compute Cluster Edition" ));                else if( osvi.wSuiteMask & VER_SUITE_DATACENTER )                   StringCchCat(pszOS, BUFSIZE, TEXT( "Datacenter Edition" ));                else if( osvi.wSuiteMask & VER_SUITE_ENTERPRISE )                   StringCchCat(pszOS, BUFSIZE, TEXT( "Enterprise Edition" ));                else if ( osvi.wSuiteMask & VER_SUITE_BLADE )                   StringCchCat(pszOS, BUFSIZE, TEXT( "Web Edition" ));                else StringCchCat(pszOS, BUFSIZE, TEXT( "Standard Edition" ));            }         }      }      if ( osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 1 )      {         StringCchCat(pszOS, BUFSIZE, TEXT("Windows XP "));         if( osvi.wSuiteMask & VER_SUITE_PERSONAL )            StringCchCat(pszOS, BUFSIZE, TEXT( "Home Edition" ));         else StringCchCat(pszOS, BUFSIZE, TEXT( "Professional" ));      }      if ( osvi.dwMajorVersion == 5 && osvi.dwMinorVersion == 0 )      {         StringCchCat(pszOS, BUFSIZE, TEXT("Windows 2000 "));         if ( osvi.wProductType == VER_NT_WORKSTATION )         {            StringCchCat(pszOS, BUFSIZE, TEXT( "Professional" ));         }         else          {            if( osvi.wSuiteMask & VER_SUITE_DATACENTER )               StringCchCat(pszOS, BUFSIZE, TEXT( "Datacenter Server" ));            else if( osvi.wSuiteMask & VER_SUITE_ENTERPRISE )               StringCchCat(pszOS, BUFSIZE, TEXT( "Advanced Server" ));            else StringCchCat(pszOS, BUFSIZE, TEXT( "Server" ));         }      }       // Include service pack (if any) and build number.      if( _tcslen(osvi.szCSDVersion) > 0 )      {          StringCchCat(pszOS, BUFSIZE, TEXT(" ") );          StringCchCat(pszOS, BUFSIZE, osvi.szCSDVersion);      }      TCHAR buf[80];      StringCchPrintf( buf, 80, TEXT(" (build %d)"), osvi.dwBuildNumber);      StringCchCat(pszOS, BUFSIZE, buf);      if ( osvi.dwMajorVersion >= 6 )      {         if ( si.wProcessorArchitecture==PROCESSOR_ARCHITECTURE_AMD64 )            StringCchCat(pszOS, BUFSIZE, TEXT( ", 64-bit" ));         else if (si.wProcessorArchitecture==PROCESSOR_ARCHITECTURE_INTEL )            StringCchCat(pszOS, BUFSIZE, TEXT(", 32-bit"));      }            return TRUE;    }   else   {        printf( "This sample does not support this version of Windows.\n");      return FALSE;   }}int __cdecl _tmain(){    TCHAR szOS[BUFSIZE];    if( GetOSDisplayString( szOS ) )        _tprintf( TEXT("\n%s\n"), szOS );}

Update for Windows 8, Windows Server 2012
Based on the info at http://msdn.microsoft.com/en-us/library/windows/desktop/ms724833(v=vs.85).aspx, Windows 8 is 6.2 productType NT_Workstation.
You may update the following part of the code...
...
<C#>
        // Test for the specific product.        if (osvi.dwMajorVersion == 6)        {            if (osvi.dwMinorVersion == 0)            {                if (osvi.wProductType == VER_NT_WORKSTATION )                    StringCchCat(szOS, _countof(szOS), TEXT("Windows Vista"));                else                    StringCchCat(szOS, _countof(szOS), TEXT("Windows Server 2008"));            }            else if (osvi.dwMinorVersion == 1)            {                if (osvi.wProductType == VER_NT_WORKSTATION)                    StringCchCat(szOS, _countof(szOS), TEXT("Windows 7"));                else                    StringCchCat(szOS, _countof(szOS), TEXT("Windows Server 2008 R2"));            }            else if (osvi.dwMinorVersion == 2)            {                if (osvi.wProductType == VER_NT_WORKSTATION)                    StringCchCat(szOS, _countof(szOS), TEXT("Windows 8"));                else                    StringCchCat(szOS, _countof(szOS), TEXT("Windows Server 2012"));            }        }
</C#>