I have seen problems like this before, and they seemed to be because the fixtest was not being installed in a command prompt that was opened "As administrator".
Please try this:
(1) click the windows start button and type in CMD but do not press enter
(2) right mouse click on the CMD program that gets displayed and select "Run as administrator"
This will open up a cmd prompt with admin privileges. Using that prompt change to the fixtest directory and run the eglfixtestinstaller.jar.
Make sure you specify the correct locations for non-shared and shared directories for RBD.
Jeff.Douglas