how .NET  Framework is installed.

Posted on 2006-11-03
Last Modified: 2010-04-24

How can i check that .NET  Framework is installed before launching my .NET  Framework application from c++ code?

Question by:quali
  • 2
LVL 12

Expert Comment

ID: 17865355
LVL 48

Expert Comment

ID: 17865816
You can test whether mscoree.dll exists in the %SystemRoot%\system32 directory.
To determine which .NET Framework versions are installed, enunerate keys under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\policy

Author Comment

ID: 17879649
>>You can test whether mscoree.dll exists in the %SystemRoot%\system32 directory.
how can i test it in c++ programme?
LVL 48

Accepted Solution

AlexFM earned 250 total points
ID: 17879796
BOOL FileExists(LPCTSTR sFileName)
    TCHAR name[1000];

    ExpandEnvironmentStrings(sFileName, name, 1000);

    DWORD dwResult = GetFileAttributes(name);

    if ( dwResult == 0xffffffff  ||
        return FALSE;

    return TRUE;

if ( FileExists(_T("%SystemRoot%\\system32\\mscoree.dll")))
    // exists

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