Exploits for MS04-022 have been developed
http://isc.incidents.org/diary.php?date=2004-07-17

Exploits for MS04-022 (Vulnerability in Task Scheduler Could Allow Code Execution) are known. By creating a specially crafted ".job" file, it is possible to cause a remote code execution using a number of common place applications as the attack vectors. Do remember to update your system asap if you have not done so.

http://www.microsoft.com/technet/security/...n/MS04-022.mspx
http://www.nextgenss.com/advisories/mstaskjob.txt
http://www.securityfocus.com/archive/1/368...11/2004-07-17/0