lost showhelp Object ???

Would someone helping me with this problem. I have error msg. when i try to add my helpfile.chm code to my main program and the error msg is : ShowHelp is not member of Systems.Window.Form ?? How can i Add ShowHelp back ?? Because if i start the new windows form application .. it's work fine with ShowHelp object. Would someone tell me what i did wrong in my project ?? thanks a lot

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