Hi, Melissa,
It sounds like the cause of the problem lies in the
application code that your developers are using to open the help
file. The fact that everything is OK when you open the help file
separately suggests that this is the case.
Perhaps you can verify this by using RoboHelp's
Context-sensitive Help Test tool to pass help calls to your file.
If there's no problem when you do this, you can be fairly confident
that the developers' code is at fault. See:
Use
the Context-sensitive Help Test tool
Here's a thread that discusses how to attach .chm files to C#
.NET applications:
Resource
on Setting up C# .NET CSH
Pete