« the MediaNetwork Win2K File Manager for version 3.3.4 fails to start up due to memory allocation errors when either MS04-011 or -012 are loaded. (These symptoms similar to those seen when installing Win2K SP4 or the MS03-045 (KB824141) hot fix on a 3.3.x Win2K FileManager: the File Manager

MediaNetwork installations older than v. 3.4 are at risk

As you are all now probably painfully aware, MS04-011 is an essential element in guarding against the new Sasser worm. Unfortunately, those customers with Unity installations older than v. 3.4 are not going to be able to protect their File Managers using the MS04-011 hot fix.

Windows NT File Managers are at further risk « 

engineering is still trying to work out if there is a solution for all WinNT FileManagers.
Best recommandation at the moment seems to be to upgrade the FMs to Win2K – if the are on an SR2200 and fullfill the memory specs (and all the rest)
so obvioussly a bad thing for customers with ISP2150 FMs.

The best pratcice and security guide will be updated on the Knowledge Center Web Site.