Are you referring to the CHM file created when you compile your project? If so, all you need to do is right click on the Microsoft HTML Help single source layout and select Properties. The top field in this dialog - Select Output Folder and File Name - is where you specify the path to the CHM file and the actual file name. Change this to the reference the required file name (e.g. C:\Source\myfile.chm) and click Save. The next time you create your project output the file name will be as you have supllied.
Read the RoboColum(n) for mutterings on RoboHelp, Technical Communication Suite and technical communication.
Depending on your version of RH, you can find the Windows item in the Project Setup tab of the Project Manager pod. If you don't already have a window specified, right-click on the window and choose New Window. If you double-click an existing window, you'll get the same dialog.
Change the text in the "Window Caption" field--that's what will show up in the CHM title bar.
Oops, I was thinking of the name in the HTMLHelp viewer. Sorry, I had to come in to work over an hour earlier than usual today.
Thanks so much to both you! The Windows dialog box did the trick and I also tried another tip I read this morning on the forum which solved my Fatal Error message problem.