Points of My Scenario:
1. I am admin of a Windows Server 2003 domain
2. Workstations have Windows XP Pro, SP3
3. I have implemented a group policy to prevent the use of USB storage as per Microsoft KB555324 (http://support.microsoft.com/default.aspx?scid=kb;en-us;555324
4. It works ONLY if the workstation has been exposed to a USB flash drive and "gpupdate /force" command is executed.
MY CHALLENGE: Although the policy works, it only works to block the same flash drive used to expose the workstation to USB storage (see point #4): other flash drives still have access.
QUESTION: What can I do to ensure the policy blocks all USB storage media?