Converted WinHelp to HTML Help and context-sensitive topics aren't working.

I am a developer and we have big project that needs to be converted from winhelp to HTML help. I received only the .CHM help file from the help auther. I added the HTMLhelp.lib file and HTMLhelp.h file in to my project. I tried to change atleast one page of the dialog. I added on helpinfo function htmlhelp function call and hard coded the .chm file path and for the right click I as well did the same thing. But I am getting "No Help topic is associated with this item" upon F1 key and crash after the right click with wincore.cpp error.

The code is as below.
BOOL CCnvCfgGenNRecPage::OnHelpInfo(HELPINFO* pHelpInfo)
{
// TODO: Add your message handler code here and/or call default
if (pHelpInfo->iContextType == HELPINFO_WINDOW)
{
int nCtrlId = pHelpInfo->iCtrlId;
DWORD dwContextId = pHelpInfo->dwContextId;
//THE NEW HTMLFUNCTION CALL
::HtmlHelp((HWND)pHelpInfo->hItemHandle,
"D:\\vista_setup\\Patmob\\PatMob.chm",
HH_TP_HELP_WM_HELP,
(DWORD)&IDARRAY(nCtrlId, dwContextId)) ;
/******************************************************************* THE OLD CODE
::WinHelp ((HWND)pHelpInfo->hItemHandle,
AfxGetApp()->m_pszHelpFilePath,
HELP_WM_HELP,
// HELP_WM_HELP flag brings up pop-up help and expects an array
// of DWORD pairs of the control ID and the context help ID
(DWORD)&IDARRAY(nCtrlId, dwContextId));
*****************************************/
}
return TRUE;
}

DO I NEED ANY OTHER FILE? Should I checked out the dialog h file and .hm file which compling the html related code?

Regards,
Kreena

Yes, it's been changed.