>I found this:

Thanks - although this probably did scare a few people into making backups last night!

>Customers running Norton AntiVirus 2000 V6.0 for Win95/98 are receiving a
>false report of a Trojan Horse virus in the file colchng.exe when trying to
>install the MSDN Library - October 1999. The manufacturer of Norton
>Antivirus has confirmed that this a false report. An update to the Norton
>AntiVirus definition set which fixes this problem will be made available to
>customers on their website. Norton AntiVirus customers also have the option
>of sending the file to the Symantec AntiVirus Research Center, using the
>Scan and Deliver wizard, for a more immediate update of their anti-virus
>defintion set.
>
>Since this is a false report you can choose to ignore the message during
>installation.
>
>Jay Hamlin
>Steve Alboucq
>Program Managers, MSDN Library
>
>
>
>
>
>>After installing the October MSDN, I ran Norton AntiVirus (NAV 5.02-NT), and it reported that C:\Program Files\Common Files\Microsoft Shared\MSDN\1033\COLCHNG.EXE, contained a "Trojan Horse" virus. I submitted this to the Symantec AntiVirus Research Center (SARC), and they confirmed it. I rechecked the CD and it is also "infected".
>>
>>First, can anyone else, using an alternate virus checker, confirm this? Second, anyone know what COLCHNG.EXE is used for? The only reference to this I could find was in the registry, and it indicates that PID.EXE "calls" it. I could find no reference to either .EXE in the MSDN search.