From: John Beckett 

"John Beamish"  wrote in message
news::
> I saw a piece (can't find it now) that provided a registry patch which
> prevented copying files *to* the memory stick but I think it still allowed
> you to attach it.  You have raised an interesting situation.

http://www.petri.co.il/disable_writing_to_usb_disks_in_xp_sp2.htm

HKLM\SYSTEM\CurrentControlSet\Control\StorageDevicePolicies
WriteProtect dword 1

John

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