Hi I have a weird situation occuring and I'm not sure how to debug it. I have a third party dll that is called from within a Com dll. Both dll's are from the same company. I also have created a VC++ dll that makes calls to this com object and two executables one in VC++ 7 and one in Borland C++ Builder 5. Both executables call the same function in my created dll. The function in my dll makes a single call to a function in the COM dll. The problem is that the VC++ 7 works fine(I have a button on a dilog where I can make multiple calls to the function). I do the same for the borland executable but the call to my dll always fails on only the first call. Subsequent calls after that operate noramlly. I even make the same function call(to the com dll) on my dll's initInstance() function (and no errors are generated here).

Here is a sequence of steps to clarify the above
VC++ app
1. dll loaded
2. In InitInstance() -- make a call to the Com dll (works fine)
3. Application GUI Displayed to screen
4. press button on dialog multiple times to call same function as in 2. (each call produces a successful result)

Borland app
1. dll loaded
2. In InitInstance() -- make a call to the Com dll (works fine)
3. Application GUI Displayed to screen
4. press button on dialog multiple times to call same function as in 2. (first call generates error...each subsequent call produces a successful result)

I calso hecked the modules debug window from both C++ Builder and Visual C++ and the proper dll's get loaded in the same order for both applications!

I have absolutely no idea where to go from here. Any suggestions woudl be greatly appreciated!! I would just switch to VC++ for both the GUI and dll but I have already built the gui using borland C++ Builder.