Hi, I have a plug-in and an executable. I want the executable to expose certain functions to the dll. To do that, the address (reference) of the object in executable is passed to the dll. and I thought of invoking the methods in executable using this reference. But during the plugin compile time I got a linking error "unresolved external symbol". I understand the basic reason behind this error, but how can we solve this? Thanks in advance, Lloyd ______________________________________ Scanned and protected by Email scanner