[Platform Builder] A script required for this install to complete could not be run.

Problem:
When I install the QFE 2011_Rollup for CE6.0 Platform Builder, I got an error message below.
There is a problem with this Windows Installer package. A script required for this install to complete could not be run. Contact your support personnel or package vendor.

Solve:
Right click on the msi, select the Compatibility tab, and check the box that says "Run this program in compatibility mode for". Leave the rest as is, and it should install after that. You may also need to do the same thing for some of the other QFE's.

Reference:
http://bsquare.custhelp.com/app/answers/detail/a_id/733/~/installing-ce-6.0-product-update-rolllups-on-windows-7-and-vista