Hi

This problem is only seen in one customer (only vista) machine ....

When the customer clicks help from the main window. the help CHM window is displayed but as a window with no contents .. as if the application is hung at that point... This doesn't occur every time ..

Crash dump shows that the hang occurred here

Code:
        hHtmlHelp = HtmlHelp( GetDesktopWindow(), 
                              szHelpFileName, 
                              uiHelpCommand, 
                              (DWORD)pBufferPos);


return TRUE; // The crash dump points here
the variables are here
hHtmlHelp = 0x000f02f4
pBufferPos = 0x00000000 ""
uiHelpCommand = 0
szHelpFileName = char [260] "D:\MyApp\Help\General.CHM"

Any suggestions ?