It has been reported that the FSLX.sys driver included in Software Virtualization Solution 2.1.3071 and possibly other versions has been causing Windows XP machines to randomly experience Blue Screen errors.
Upon investigation of memory dumps provided by the client it was noted that an error 22 was being reported when the Blue Screen occurred
This is a reference counting defect.
At this point the only solution is to upgrade to the latest product offering, which in this case would involve upgrading to Symantec Workspace Virtualization 6.1 SP7
Software Virtualization Solution 2.1