Custom bootstrapper doesn't work anymore


I don't whether windows updates broke the compatibility or what, but bundles are not installing the product like they should.

Double clicking on Setup.msi installs the sample to Program Files (x86)/Acme.
But doing the same with any of the 11 bundles (even tried changing the location) doesn't help.

I'm testing this on Windows 7 64bit SP1 with latest updates.
And I tried compiling bundles and setup with wix versions 3.8, 3.10.3 and 3.11.

3.8 doesn't even show the UI. and 3.10 and 3.11 say "Setup Successful" but nothing is installed and there is no ARP entry in control panel.

I have also attached log file if it helps.

file attachments