I managed to remove the error however on running the application I get this error on clicking the run menu TryCalc2:File winocc.cpp Line 238 On ignoring the error I get my calculator and it runs properl.What is this error????

It gives the Error that CAboutDialog class doesnot exist.I had added the dialog box and its name was CAboutDialog

Basically I completed the steps given in this site: http://www.justppc.com/evc2.shtml

Hi... I am currently working on embedded vc++ and I have created a mfc single document exe application .Now in the resource I add a dialog box and also in the menu I add a new menu button.On pressing it I want the dialog box.For that I have added a command handler to the toll bar.Now what should I write in the command handler for the dialog box to be executed .