>Hi,
>
>Does anyone know how to check whether a DLL is already registered on a client PC, e.g. an API function that does IsRegistered ?
>
>Thanks, J

Jonathan,

I assume you mean a VFP COM object. If so, you can use the registry object that comes with the FFC to check if the ProgID already exists.

SET CLASSLIB TO Registry
oReg = CREATEOBJECT('Registry')
? oReg.IsKey(< ProgID >)