Stop application to write on Registry and Filesystem

Suppose you have installed application X on your machine, not totally trustful. I would like to stop this application to m开发者_JS百科ake changes in my computer. My OS is Windows 7, but a solution on a neighbor like XP or Vista would be valid too. Thanks in advance.

Do you need to do this in code? There exist several solutions like Thinapp, Molebox and some other which provide virtualization for an EXE, so that the wrapped EXE doesn't change the filesystem or registry. Take a look at them.