polyplay26,
there seems to something wrong with the path to that ressource. Reconfigure the dll-call!
A side note: your error message shows a path to a *.bmp file, which has nothing to do with a call to a dll - except it is a parameter of that call. If so, you may want to modify the path by replacing each single '\' by a double '\\' one. Under some circumstances a '\' is interpreted as a trailer to a special code. To have a '\' to act as such one needs to use '\\' instead.
I am not sure if that works, but its worth a try!
Greetings from Germany!
--
Uwe
