When I try to compile my project, I receive the following error message: "Invalid
Command Call (HC31.EXE)"
The following reasons can cause this message:
- There is no Microsoft Help Compiler at your computer.
To create a Help file (.HLP) from your project hyperbase, you need a
Microsoft Help Compiler (e.g., HC31.EXE, HCP.EXE or HCW.EXE).
A Help Compiler is not supplied with Visual Prolog, but it can be found in the Visual C++,
the Borland C++, and many other products.
If you do not have any mentioned Help compiler versions, it may be worth checking out the
Softlib directory at ftp.microsoft.com or trying the following URL: ftp://ftp.microsoft.com/Softlib/mslfiles/hc505.exe.
- HC31 Help Compiler, set by default in the Application Expert, is missed at your
computer.
You need to set a Help compiler installed at your computer in the Help Maker tab
of the Application Expert (Options | Project | Application Expert
menu item).
- The path to the Help Compiler is not set or includes blank
characters.
You need to set a path to this Compiler with the help of Options | Global
| External Tools Directories item. If the Path contains blank characters or
sub-names longer then 8 chars, you should edit them to satisfy DOS naming conventions.
For example, if you have the following path:
C:\PROGRAM FILES\RoboHelp98 ,
you should edit this path in the following way:
C:\PROGRA~1\RoboHe~1
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