This is pretty much like it sounds - you can run the game in a window. For
example, if you use Office 2000, you can open up Word, Excel, Access, etc.
all at the same time. Each of these can be thought of as a "window" - the
essence of the Windows operating system.
You can also run F1 2001 like this by doing the following:
Change the WindowedMode=from 0 to 1 in the config.ini in the root of the
install directory.
You might want to try this in an effort to achieve better frame rates.
Todd