Finally got around to researching and fixing a problem that our users have, Files that you add to the Offline Files folder on a Windows XP-based computer are synchronized when another person uses the computer. I requested the hotfix from Microsoft (it's free and actually included in sp2 but I can't install sp2 because of software incompatabilities) and then wrote a script to create the required entries to prevent the storing of offline files on the pc apart from the required user.....
reg ADD HKLM\Software\Microsoft\Windows\CurrentVersion\NetCache /v PrimaryUsers /t REG_SZ /d %userdomain%\%username%
reg ADD HKLM\Software\Microsoft\Windows\CurrentVersion\Netcache /v PurgeNonPrimaryUserFilesAtLogoff /t REG_DWORD /d 1
reg ADD HKLM\Software\Microsoft\Windows\CurrentVersion\Netcache /v AdminPinForPrimaryUsersOnly /t REG_DWORD /d 1
echo A windows patch will now start to install - you will need to close your apps and reboot before the installation is complete.
q811660_wxp_sp2_x86_enu

This is also a problem on Windows 2000.
Do you know of a solution for Windows 2000?
afraid not, but then again I've not had this problem on windows 2000. I take it you are running sp4 on the machines?
> I take it you are running sp4 on the machines?
yes