Check if a OCX or DLL is registered.

[__Russell__]

I've build a addin that needs two references in order to run:
MSOWC.dll & Msflxgrd.ocx

These files sometimes aren't present on some of the PC's that will use my addin, so how do I check that they are registered?

Something like:

If ReferenceExists("MSOWC.dll") = False Then
    msgbox "False"
    Call RegisterRef("MSOWC.dll") ' Register reference
Else
    msgbox "True"
End If

Is there a way of using Regsvr32.exe in V6B code?