Jan,

>
>In Visual FoxPro I built a COM object (a COM DLL) ...
>When calling a procedure in the Com object (from a Delphi application) on
>the same PC as where the object was made, no problem occurs.
>...
>After installation on another computer and calling a procedure in the COM
>object from Delphi a message appears saying: "Library not registered".
>


Just an Idea. Do You distribute and register all necessary
Runtime-DLL's. When You build a multithreaded DLL You will have to
have vfp7t.dll on the Client's station. vfp7r.dll will do with single
threaded.