>It's compiled as an EXE ... an yes it's activated via IIS.. from a web site using FOXISAPI.
>What do you mean by granting permissions... do I have to do something different than granting Write rights to IUSR. annonymous?

No, I meant exactly that.
Did you try exposing the COM as a MTDLL? I don't remember if that's possible for a FOXISAPI activated component.. if it is, it would be better to do so.