Hmm, the file is just a wise installer... it shouldn't perform any special actions.
OK, time for heavy weapons ;D
Could you try the File Monitor? Start the monitoring before clicking on the SFX file, try to start the SFX file, stop the monitoring, and check for "FILE NOT FOUND" items (they will certainly be many of them, since it's a usual event when searching for a file in multiple directories, such as %PATH% - but some of them may be "suspicious").
If you needed assistance with the FileMon, let us know.
Btw, in the first post you said that a number of files were infected by a virus. What virus was that? I considered the possibility of a corrupted SFX archive (WinZip archives, for example, often give CRC error when they're infected and repaired - since the header has changed a little). I guess it's not the case here, though... I understand that the SFX archives are fresh-downloaded(?)... besides, the error message should certainly be different.
Hmm... I didn't find any FILE NOT FOUND items, but two ACCESS DENIED items... Is my problem related to access permissions? :-\
The virus was something called "parite", as far as i can recall. yes, the archives are run from a CD provided by the manufacturer.
Hmm... again! When I run the file on my hard drive i see several FILE NOT FOUND items instead.
The output is:
12:17:48 explorer.exe:1212 OPEN C:\Documents and Settings\Jari A-K\Mina dokument\Mina Drivrutiner\webxp.EXE\:Docf_PebiesnrMkudrfcoIaamtykdDa:$DATA FILE NOT FOUND Options: Open Access: All
12:17:48 explorer.exe:1212 OPEN C:\Documents and Settings\Jari A-K\Mina dokument\Mina Drivrutiner\webxp.EXE\:PebiesnrMkudrfcoIaamtykdDa:$DATA FILE NOT FOUND Options: Open Access: All
12:17:48 explorer.exe:1212 OPEN C:\Documents and Settings\Jari A-K\Mina dokument\Mina Drivrutiner\webxp.EXE\:Docf_PebiesnrMkudrfcoIaamtykdDa:$DATA FILE NOT FOUND Options: Open Access: All
12:17:48 explorer.exe:1212 OPEN C:\Documents and Settings\Jari A-K\Mina dokument\Mina Drivrutiner\webxp.EXE\:PebiesnrMkudrfcoIaamtykdDa:$DATA FILE NOT FOUND Options: Open Access: All
12:17:48 explorer.exe:1212 OPEN C:\Documents and Settings\Jari A-K\Mina dokument\Mina Drivrutiner\webxp.EXE\:Docf_PebiesnrMkudrfcoIaamtykdDa:$DATA FILE NOT FOUND Options: Open Access: All
12:17:48 explorer.exe:1212 OPEN C:\Documents and Settings\Jari A-K\Mina dokument\Mina Drivrutiner\webxp.EXE\:PebiesnrMkudrfcoIaamtykdDa:$DATA FILE NOT FOUND Options: Open Access: All
12:17:48 explorer.exe:1212 OPEN C:\Documents and Settings\Jari A-K\Mina dokument\Mina Drivrutiner\webxp.EXE\:Docf_PebiesnrMkudrfcoIaamtykdDa:$DATA FILE NOT FOUND Options: Open Access: All
12:17:48 explorer.exe:1212 OPEN C:\Documents and Settings\Jari A-K\Mina dokument\Mina Drivrutiner\webxp.EXE\:SummaryInformation:$DATA FILE NOT FOUND Options: Open Access: All
12:17:48 explorer.exe:1212 OPEN C:\Documents and Settings\Jari A-K\Mina dokument\Mina Drivrutiner\webxp.EXE\:Docf_SummaryInformation:$DATA FILE NOT FOUND Options: Open Access: All
12:17:48 explorer.exe:1212 OPEN C:\Documents and Settings\Jari A-K\Mina dokument\Mina Drivrutiner\webxp.EXE\:SummaryInformation:$DATA FILE NOT FOUND Options: Open Access: All
12:17:48 explorer.exe:1212 OPEN C:\Documents and Settings\Jari A-K\Mina dokument\Mina Drivrutiner\webxp.EXE\:Docf_SummaryInformation:$DATA FILE NOT FOUND Options: Open Access: All