>I've found 2 refrences for error numbers. One is by searching the MS site using the error number (824). If there this an article about it, you'll get it. Not many there though. The other is using MSDN (CD or On-line) There are some fairly detailed acticles here about Setup.exe, and how it works.
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>The Object number, as I recall, refrences the line number that created the error in the Setup.inf file. Looking at the .inf, you can usually see the object/file name in that line.

You may be right about the inf file...but unfortunately, it's a text file so it's tough to tell what "object #" is -- there are blank lines, etc. I'm pretty sure it's not the actual text line #...

One thing I've determined is that a lot of setup error numbers show the same fairly useless text message "your setup files may be damaged..." -- it would be nice to have a unique message for each number. Oh well, thanks, for your offer to help, but I solved the problem with reinstallation, so I guess I won't worry about the precise error diagnosis :)