I may have done something wrong. It worked once, but now it won't work.
When I put the Riched20.dll in the Windows directory, TunerPro works...but don't I have to install it into the registry somehow? Isn't it something like regsvr from the RUN in the Start menu?
nope. just copy it to your windows (or windows/system in win98 windows/system32 in win2k/winxp) and you're good to go. you can also just put it in the directory with the tunerpro.exe.
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TunerPro Author
1989 Trans Am