Launching in Steam

[stendec]

Every time I launch CloD in Steam it triggers a Windows7 UAC prompt for Steam Client Service. When I click yes Steam shows a small window saying "Performing first time setup- Installing Microsoft VC Redist Package" for a few seconds before the game launches.

The game launches and runs fine after this but Steam does this UAC and "first time setup" thing every time I launch the game and is a bit annoying. Any ideas why this is occurring? Verifying Cache does not fix it.

Would a re install work? Can I do this by backing up the game files, uninstalling, pasting the game files back into steamapps folder then installing again?

The game itself is absolutely incredible by the way!