Need help trying to share my files with my xbox360

my notebook has vista home premium..and has been connected (erthernet) to my
xbox360....i was able to stream files for a while with no problems at all.
one day i got an error message "WMI reverse performance adapter maintenance
utility not working" now i cant connect to my xbox360.. and the xbox cant
detect my file sharing program on my computer. Is this message related to the
problem??

these are the error messages i saw in my event viewer regarding this issue.

"faulting application WMIADAP.exe version 6.0.6000.16386, time stamp
0x4549af43, faulting module loadperf.dll, version 6.0.6000.16386, time stamp
0x4549bcf5, exception code 0xc0000005, fault offset 0x00012bae, process id
0xe38, application start time 0x01c7d3680d639ebc"

"A new media server was not initialized (my xbox360 trying to connect)
because WMCreateDeviceRegistration encountered error '0xc00d2711'. The
windows DRM components on your computer might be corrupted. Veryify that
protected files play correctly in Windows Media Player then restart the
WMPnetworksvc service"

Im pretty sure these errors are related
cant seem to find any help on this problem???