Sandeep;
A possible cause of that problem is that you are linking the MFC libraries statically. Check the following:
Go to Project -> Settings (Change to All Configurations)
In the "General" tab make sure "Use MFC in a Shared DLL" is selected.
That's all I know. I hope it helps.
For the second question, you don't need to replace those terms.
Regards;
Enrique
www.vartortech.com