Well, it ran straight-away without any trouble. I did do a right-click and "Run as administrator on it, and if you create a short-cut to start it, you could set the properties for it, and that would also work from there.
ECOPTC-OV-2_0_0_C.zip © 2001 Kim Ronhof
You will have to do all the ciphering yourself of the game files to get any messaging that would be in 5 character groupings though. Open Data \Campaigns \Campaign \messages.txt in a text editor, and make it wide. The file is tab delimited. You want to find the Priority column, and the messages set to "0" for high priority. Copy those messages and encipher them, then copy them back in. Next time you're out, you will receive encoded messages that you'll have to decipher...