Binaryworld - GetFileFromProgID - The file that implements a COM component with give ... [ VB -> COM-COM+ ]

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

Function GetFileFromProgID(ByVal ProgID As String) As String
  Dim clsid As String
  Const HKEY_CLASSES_ROOT = &H80000000

  ' get the CLSID from the registry, exit if not found
  clsid = GetRegistryValue(HKEY_CLASSES_ROOT, ProgID & "\CLSID", "")
  If Len(clsid) = 0 Then Exit Function

  ' try to read the HKEY_CLASSES_ROOT\CLSID\{...}\InProcServer32 value
  GetFileFromProgID = GetRegistryValue(HKEY_CLASSES_ROOT, _
    "CLSID\" & clsid & "\InProcServer32", "")
  ' exit if found
  If Len(GetFileFromProgID) Then Exit Function

  ' try to read the HKEY_CLASSES_ROOT\CLSID\{...}\LocalServer32 value
  GetFileFromProgID = GetRegistryValue(HKEY_CLASSES_ROOT, _
    "CLSID\" & clsid & "\LocalServer32", "")

End Function