Well, a pretty short file. Just run the application, and your desktop will be enlarged 2.6 times both directions. To play Sid Meier's Civilization 3 using this application, you first need to set up Civ 3 to use 800x600 resolution.

To do this:

Open the Civilization3.ini file in the folder where you installed Civ3.

Add the following two lines to it:

Video Mode=1024
KeepRes=1

Exactly as above, you migh wish to copy&paste them.

Now, run Scroll.exe and then launch Civ 3. Civ 3 will be running in 800x600 mode, but you will be able to scroll by dragging the mouse to screen's edge. This is neccessary to conduct diplomacy and other things that wouldn't fit on a single 800x600 screen.

Note that you should only use this application if your monitor doesn't support resoltuions higher than 800x600, and you can't play Civ 3 because of that. Otherwise, this is pretty worthless.

That's pretty much all.

Solver.