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Tip of the Day
Language: VB4/32,VB5,VB6
Expertise: Intermediate
Apr 21, 2001



Application Security Testing: An Integral Part of DevOps

GetFileFromCLSID - The file that implements a COM component with given CLSID

' Get the name of the DLL or EXE that contains
' the class whose CLSID is passed as an argument
' Note: Remote servers aren't taken into account

Function GetFileFromCLSID(ByVal clsid As String) As String
    Const HKEY_CLASSES_ROOT = &H80000000

    ' try to read the HKEY_CLASSES_ROOT\CLSID\{...}\InProcServer32 value
    GetFileFromProgID = GetRegistryValue(HKEY_CLASSES_ROOT, _
        "CLSID\" & clsid & "\InProcServer32", "")
    If Len(GetFileFromProgID) = 0 Then
        ' try to read the HKEY_CLASSES_ROOT\CLSID\{...}\LocalServer32 value
        GetFileFromProgID = GetRegistryValue(HKEY_CLASSES_ROOT, _
            "CLSID\" & clsid & "\LocalServer32", "")
    End If
End Function

Francesco Balena
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