Game won't install?

[jj77]

Whenever i try to install the game, it finishes extracting everything then it brings up some windows installer window, then i get this error:

Component Windows Installer 4.5 has failed to install with the following error message:
"A failure occurred attempting to install Windows Installer 4.5."

The following components were not installed:
- Microsoft .NET Framework 4 Client Profile (x86 and x64)

The following components failed to install:
- Windows Installer 4.5

See the setup log file located at 'C:\Users\Josh\AppData\Local\Temp\VSD7DC7.tmp\inst all.log' for more information.

I'm running windows vista 32bit if it matters. Any help would be really appreciated.