Licencing servers

Hi,
I have been asked to look into some kind of server that will allow the client to access a application, like Visio or MSProject, and use it for there needs and then give it back. It could have a pool of software appps and licences that could be used by the client and when done would create a log of who used what and for how long.
Does any one know where I can start looking for such an application like this. Any help is greatly appreciated. Thanks, Bob