Auto Update malformed tests are failing in verify_AU_post_install

Reproduced with 6u19 b03

Here is the log:
http://sqeweb.sfbay.sun.com/deployment2/ranjitl/install-results/6u19-b03-rerun/Standalone_deployment_install_2010_03_05_12_35_16/Ken.Windows_Vista.x86/Malformed_CheckSum_UI_Offline/Malformed.log

[2010-03-05T22:13:38.78] AU VERSION in Registry is
[2010-03-05T22:13:38.78] FAIL!!! Registry value for AU_VERIFY_VERSION is unexpected!!
[2010-03-05T22:13:38.78] TEST_JRE_HOME is C:/Program Files/Java/jre6
[2010-03-05T22:13:38.78] CLASS PATH is Y:/sqenfs-1/comp/quality1/deployment2/ranjitl/deployment_6_UR_int_ws/deployment/src/install/runtime/1.6.0_18;Y:/sqenfs-1/comp/quality1/deployment2/ranjitl/install-results/6u19-b03-rerun/Standalone_deployment_install_2010_03_05_12_35_16/Ken.Windows_Vista.x86/AutoUpdate_NextGen;Y:/sqenfs-1/comp/quality1/deployment2/ranjitl/deployment_6_UR_int_ws/share/lib/stl/stl.jar;Y:/sqenfs-1/comp/quality1/deployment2/ranjitl/deployment_6_UR_int_ws/deployment/share/lib/stl/6.0/deploy_stl.jar;Y:/sqenfs-1/comp/quality1/deployment2/ranjitl/deployment_6_UR_int_ws/share/lib/jemmy/jemmy.jar;Y:/sqenfs-1/comp/quality1/deployment2/ranjitl/deployment_6_UR_int_ws/deployment/share/lib/fait/fait.jar
[2010-03-05T22:14:45.64] PATH is Y:\sqenfs-1
[2010-03-05T22:14:45.64] verify_AU_post_install.sh failed!
[2010-03-05T22:14:45.64]
[2010-03-05T22:14:45.64] after verify_AU_post_install check status -> 1
[2010-03-05T22:14:45.64] Test FAILED becz of verify_AU_post_install is not showing AU BASE VERSION after using malformed setup !!!!
[2010-03-05T22:14:45.64] Y:/sqenfs-1/comp/quality1/deployment2/ranjitl/install-results/6u19-b03-rerun/Standalone_deployment_install_2010_03_05_12_35_16/Ken.Windows_Vista.x86/Malformed_CheckSum_UI_Offline/DoWork.sh 49: cannot open "/.txt" for output: Access is denied.
[2010-03-05T22:14:45.64] RUN_STATUS="${?}"
[2010-03-05T22:14:45.65] # Actual: RUN_STATUS=1
[2010-03-05T22:14:45.65] echo "FAIL - DoWork script had issues!"
[2010-03-05T22:14:45.65] # Actual: echo "FAIL - DoWork script had issues!"
[2010-03-05T22:14:45.65] FAIL - DoWork script had issues!
[2010-03-05T22:14:45.65] exit 1
[2010-03-05T22:14:45.65] # Test level exit status: 1
[2010-03-05T22:14:45.65]