"AppWizard has created this <project name > application for you. This application not only demonstrates the basics of using the Microsoft Foundation classes but is also a starting point for writing your application." From here you may understand that what type of project is this that is what i have written these text here.Now i want to use one of the functions (for example myfunction())from VC++ 6.0 project in my window application which is developed using C#(framework 1.1). One more thing , in my system i dont have visual studio 6.0 installled , rather , visual studio 2003. i opened the unmanged project(vc++) in visual studio 2003 and tried to create .dll out of unmanged code(vc++) after changing the configuration setting. dll got created but i am not able create RCW( runtime callable wrapper) using tlbimp command line tool. i am getting error like " this is not correct com dll or assembly dll"plz advice me what has to be done if you have solution for his.thanks in advance.jebasingh luccas