JRE Uninstall string for v7 all the same - but do not work

Question

We have multiple Windows 7 machines running v7u1 thru v7u10.
I found the uninstall string and was able to run MsiExec.exe /X{26A24AE4-039D-4CA4-87B4-2F83217010FF} on my own machine to remove the software successfully.
In looking at u6,u7,u9 and u11 installations, I noticed the Uninstall Strings are exactly the same. But when ran on those machines, the system states "This action is only valid for products that are currently installed".
However, I can remove the version from the Control Panel.
So what are the correct uninstall strings for v7u1 thru v7u11?

Answer 1

All of our users are local admins and tend to install whatever. This leads to a messy environment and we don't always know which version of Java is installed. So, to address that, I created a small script that scours 'HKLM\software\microsoft\windows\currentversion\uninstall' for Java entries, reads the uninstall string then runs the reported uninstall string. The assumption here is that the uninstall string will be an MSI command. (All the machines & versions of Java used the same format.)
This is a Windows 7 Enterprise (32-bit) environment, but the script also works on 64-bit installations of Windows 7 Enterprise.
I've tested this with 7u11 and went as far back as 6u21. It should work with just about any version that uses MSI for uninstalling.
@echo off
setlocal enabledelayedexpansion
echo. & echo Checking for Obsolete Versions of Java...
for /f "usebackq tokens=*" %%a in (`reg query HKLM\software\microsoft\windows\currentversion\uninstall`) do (
     rem echo a is %%a
     for /f "usebackq tokens=2*" %%b in (`reg query "%%a" /v DisplayName 2^>nul ^| find /i "java"`) do (
          rem echo b is %%b
          rem echo c is %%c
          for /f "usebackq tokens=3,4" %%d in (`reg query "%%a" /v UninstallString 2^>nul`) do (
               echo.     Removing %%c
               rem echo d is %%d
               rem echo e is %%e
               set uninstallcmd=%%e
               set uninstallcmd=!uninstallcmd:^/I=^/X!
               rem %%d %%e /qb-
               %%d !uninstallcmd! /qb-
:end
endlocal
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