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how .NET  Framework is installed.

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

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

Regards
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Question by:quali
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5 Comments
 
LVL 12

Expert Comment

by:rajeev_devin
ID: 17865355
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LVL 48

Expert Comment

by:AlexFM
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
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Author Comment

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

Accepted Solution

by:
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  ||
        dwResult & FILE_ATTRIBUTE_DIRECTORY )
    {
        return FALSE;
    }

    return TRUE;
}

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