remove a startup program that doesn't appear in SP?

Hello all,

After recently installing some Microtek scanner software, I found that the "scanner finder" part of the software bundle is set to open at startup. I'm mildly annoyed at this becuase I very rarely use the scanner, and would like to keep my dock as clean as possible, but when I went to system preferences > accounts > log-in items, the program is not there. What gives? Come to think of it, there are several programs that I KNOW are set to startup at login which aren't listed either (Pathfinder for one). Is there some other list? There's no way to set this in the program itself.