PIP Install 6u11 over 6u10 fails with error code 1722

Steps to reproduce :-
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1. Uninstall Java 6u5+ (if present).
2. Download 6u10 online installer from here.
3. Install 6u10 using the 6u10 online installer
4. After installation, run java -version to verify 6u10 is installed
5. Open Command Prompt: Start > Run > type: CMD
6. In the command prompt, type: java -version
7. You should see this version.
    java version "1.6.0_10-ea"
   Java(TM) SE Runtime Environment (build 1.6.0_10-ea-bXXX)
   Java HotSpot(TM) Client VM (build 1.6.0_10-ea-bXXX, mixed mode)
8. Save and run the following script.
9. Run the Java Control Panel Update tab.
10. Click on "Update Now"
11. Click on "Install" on the update dialog shown.
12.Java setup windows comes up....

After some time installation fails with error code 1722, please see attachements for more info.