How can I use a COM?

[ilavl]

I registered a COM named "red.ax", and then 1. DEFINE_GUID 2. add the red.lib into the 'link' page 3. CoCreateInstance it. but it get error when linking: hehefaintDlg.obj : error LNK2001: unresolved external symbol _CLSID_NvRender4 is it has something to do with the .lib ? How could I get through it?

[Renjith Ramachandran]

try to include _i.c and .h files I want to change Myself..Can u help me? :)

[ilavl]

I've resolved the problem. it was Init_guid.h havent been included.