this may not work because the game is to new but try a program called "DOS box" that *might* work
if that does not work try getting the version from GOG they have thing for it
and if you don't want to buy it again and I don't condone or support this but it does not matter since it is a 15 yr old game torrent the GOG version and play that until you feel you want to buy but that is a maybe.
And if all that does not seem appeling look at this -->
http://answers.microsoft.com/en-us/windows/forum/windows_other-gaming/windows-7-how-to-make-simcity-3000-run/22389ede-dda9-475f-99ea-3d7410ae7be0 I have not tried it myself but the user "Hellmeat" had a good solution on the page and to quote it
"Ok, i looked all over for the answer to 'How to play Sim City 3000' on Windows 7, i tried a few till i tried this, hope this helps
Insert disk - copy and paste CD Contents to 'new folder' on desktop (this is what i did).
Then download this PATCH
Then copy and paste these 2 files ^ to same folder (should be 'Baapp' and 'SC3U').
Then close all windows except this 'new folder' and simply click 'Launcher'
This worked for me first time so hopefully will work for you guys
Good luck "