Does Windows 7 make it any easier to upgrade downloaded applications on restricted users' desktops?

Does Windows 7 make it any easier to upgrade downloaded applications on restricted users' desktops?

I'm regularly asked to login to a user's machine and upgrade their desktop's version of TweetDeck, or Flash, or Firefox, etc. I would love to let the end user just upgrade it themselves, especially for some of the apps that have an extremely simple upgrade process like TweetDeck. However, they are restricted users (for good reason) and we're not going to elevate their rights.