Register and unregister type libraries

Register and unregister type libraries:


Register and unregister type libraries
All COM-oriented VB developers know how to register and unregister an ActiveX DLL, using the REGSVR32 utility. However, there is no such an utility to register and unregister a type library.

You can quickly build your own TLB Registration utility with a handful of statements, thanks to the undocumented TLBINF32.DLL library that is silently installed with Visual Basic 5 and 6. Just add a reference to the 'TypeLib Information' library in the References dialog, and then invoke one of these two functions:


' Register a type library

Sub RegisterTypeLib(ByVal TypeLibFile As String)
Dim TLI As New TLIApplication
' raises an error if unable to register
' (e.g. file not found or not a TLB)
TLI.TypeLibInfoFromFile(TypeLibFile).Register
End Sub

' Unregister a type library

Sub UnregisterTypeLib(ByVal TypeLibFile As String)
Dim TLI As New TLIApplication
' raises an error if unable to unregister
TLI.TypeLibInfoFromFile(TypeLibFile).UnRegister
End Sub