Problem Description : j2re1.4.2 structure still exists after downgrade un-installation

Tested_Java_Release : Deploymentl PIT Build 20 (build3) for 1.4.2 (mantis)
Tested_Build : J2RE.exe
Tested_Build_Location : /net/sqesvr/deployment3/mantis/JD-PIT-20/windows-i586
Tested_Machine_Name : Windows XP(jd-sqe-lab2) / Windows 2000 (lemonade)

Steps to Reproduce :

1.) Install the 1.4.2 j2re.exe on any windows machine
2.) upgrade the jre to 1.4.2_01 using java update mechanism
3.) Now un-install 1.4.2
4.) now un-install 1.4.2_01

Result : jre1.4.2 and jre1.4.2_01 structure would still exists on the system

Scenario II
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1.) Install the 1.4.2 j2re.exe on any windows machine
2.) upgrade the jre to 1.4.2_01 using java update mechanism
3.) Now un-install 1.4.2_01
4.) now un-install 1.4.2

Result : jre1.4.2_01 structure would still remain on the system