Hi,
I have a VFP COM DLL. I need to pass strings from VB to VFP COM DLL. I get error "type mismatch". Any idea?

Code:
VFP

DEFINE CLASS obj AS SESSION
PROCEDURE execute
PARAMATER tcString, tcString2

**Do watever

ENDDEFINE

VB

Dim myobj as mydll.obj

set myobj = NEW mydll.obj

myobj.execute("aaa","bbb") ' error occured


Why?

Thank you