Gary, Bear with me here, ive just figured it out! You will have to down load the latest free "winzip" software. This should open up once installed. Once that is done, open the above folder that you have already down loaded (The link Asad has provided) in Winzip. In win zip "right click" on the extract key at the top, this will then throw a window up asking where you want to put it ie: Documents etc etc. Press "ok". Once that is done, open the OMEX folder from where you have saved it above, and run the "setup.exe" icon. From here on in, it should work outno problem. Only thing is, i cant test it as i dont have a map on the comp. Hopefully this helps you out buddy Rory