HIFS IFSOpen(LPCSTR HelpFileName)
Opens an existing .HLP or .MVB and reads in Header-Level Data structures
Defined in: C:/HLPACCES/IFS.C
A Handle for the opened File-System to be used in Subsequent calls to IFSOpenFile. The Handle must be freed by calling IFSClose
Pointer to a string containing the Filename of the Help-File
This function may also be used to open other internal File Systems, for example Annotation-Files etc.