1. A method comprising: requesting a computer in a network to install a first application and execute the first application; transferring one or more files to the computer; making modifications to the computer to install and execute the first application on the computer while recording the modifications, the modifications comprising allocating a resource to the first application; halting the first application on the computer; reversing a portion of the modifications to the computer according to the recorded modifications, reversing comprises deallocating the resource from the first application; and making modifications to the computer to install and execute a second application on the available computer while recording the modifications, the modifications comprise allocating the resource to the second application.