Originally posted by Chris
thx parksie. as for...

Q5. The error is from VB.
Q7, I pass the structure from DLL to VB/VC external program.
Q8. That mean if the DLL is compile for VB used, than I need the DEF file?

regards,
5 & 6 - No idea, sorry.

8 - Yes, you'll need it unless you're compiling as C code and don't mind using the _func@size notation.