Invoking MFC exe methods from MFC Extension dll

[zuhrs]

Thanks for the prompt reply

I have done this steps before itself. I mean I had added the lib file in the linker and included the header file also.

Below is the piece of code where I am facing problem.
CTestApp *pISL = new CTestApp; //CTestApp is the exe to be launched and I need a pointer to its //member functions
pISL->calculateTot();

The above piece of code gives a linker error as follows
error LNK2001: unresolved external symbol "public: __thiscall CTestApp::CTestApp(void)" (??0CRBSTApp@@QAE@XZ)



In the exported exe I have the methods as follows:
__declspec(dllexport) CTestApp();
__declspec(dllexport) virtual BOOL InitInstance();
__declspec(dllexport) void calculateTot();



But the following code compiles properly
CTestApp *pISL;
pISL->calculateTot();

Can I know what is the problem in this. I mean I am not able to craete an object/instance of CTestApp.