Using Windows Vista or Windows 7, I can't access the online help for InStat or StatMate.

 The Windows version of InStat and StatMate were written before Vista, and use the older .HLP style of online help. Viewing this help requires the Windows Help Viewer, and this is no longer a standard part of Windows Vista.

Update to InStat 3.1 to bypass this problem. Or read on to fix the problem in InStat 3.0.

If you try to access help, Windows presents an error message with a link to a page on microsoft.com. Follow the instructions on that page to download and install the Windows Help program (WinHlp32.exe) for Windows Vista. Once that program is installed, the Help for InStat and StatMate will work just fine. Do note that you must be logged into Windows as an administrator to install that program. 

If you don't want to fuss with installing Windows components, all the same information that is in the Help system is also in this free InStat pdf manual .