When Mantis is installed on Auto Java Update supported Platforms (windows SP3 and later OS) , java sheduler process gets started when user logout and log back in after installation is complete.Uninstallation of Mantis goes successful though the "jusched.exe" process is still running.Now , try installation of Mantis again , Installation fails due to the System Locked files.

Uninstallation should shutdown the process and remove the "jusched.exe" file from the JRE/bin directory.

Tested_Java_Release : Mantis Build 09 , PIT Build 12 for 1.4.2 (mantis)
Tested_Java_Release : Mantis beta
Tested_Build : J2RE.exe
Tested_Build_Location : /net/sqesvr/deployment3/mantis/JPI-PIT12/build2/jre.exe
Test_Location : see steps to reproduce
Tested_Machine_Name : sqe-jpi-04, jdsqe-lab2
Testted O/S : Windows XP, Windows 2000 SP3
Tested_ Browsers : IE

To reproduce the problem:
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1. Install Mantis JRE 1.4.2 on windows SP3 or later platform
2. Logout and log back in after installation is sucessful.
3. Make sure "jusched.exe" process is started in the windows taskbar.
4. Uninstall Mantis 1.4.2 from Control Panel -> Add/ Remove programs.
5. After uninstallation is successful .
6. Install JRE1.4.2 Mantis .
7. Installation would fail , due to the locked files.