Run a macro in background?

Hi

It is possible to run a macro for a browser in background so that you can use other programs at the same time?

yeah i have also this problem. i have installed a virtual machine for example vitualbox(dot)org
in this virtual computer run win xp with my macros, tools, etc....
the virtualbox window is minimized and i can run every other programm or window in the same time.

I just use two windows of firefox. One minimized for imacros. Second for browsing.