How to detect VC++ 2008 redistributable?

Question

Is there a Registry setting that I can look for to determine whether or not the Visual C++ redistributable is installed, whether standalone or as part of Visual Studio 2008?

Answer 1

Found registry entry for VC2008 redistributable. Here is my solution:

BOOL IsVC2008RedistInstalled(LPCTSTR pLogFile)
{
    TCHAR szLogEntry[256];
    memset(szLogEntry, '0', sizeof(szLogEntry));
    HKEY hKey;
    LONG lErr;

    TCHAR csid[256];
    _stprintf( csid, _T("SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\{9A25302D-30C0-39D9-BD6F-21E6EC160475}"));
    lErr = RegOpenKeyEx(HKEY_LOCAL_MACHINE, csid, 0, KEY_QUERY_VALUE, &hKey);
    if (lErr == ERROR_SUCCESS)
    {
    _stprintf(szLogEntry, _T("VC2008 Redistributable was installed before.\n"));
    toFile(pLogFile, szLogEntry);
    return TRUE;
    }
    else
    {
    _stprintf(szLogEntry, _T("VC2008 Redistributable was not installed before. %ld\n"), lErr);
    toFile(pLogFile, szLogEntry);
    return FALSE;
    }
}