Sophos AV gives "suspicious file" application events for KB.exe

[bluetree211]

File "D:\bin\kb.exe" has been identified as suspicious file of type 'Sus/UnkPacker'.
Please send a sample to Sophos.


http://www.sophos.com/security/analy...unkpacker.html

basically preventing me from finishing the install (halts at 89% when trying to copy kb.exe over) The problem is Im trying to install on my work laptop and the AV is managed so I cant manually authorize the file... I tried installing the 1.65 patch but it doesnt like the kb.exe from that either.

any suggestions?