How to solve problems with launching? (Win 7, 64 Bit)

Sorry, I don't have enough rep to comment, but I found a solution that may help you from the site: www.gamersgate.com/gametutor?issue=237765.

"...after some testing we have found out that windows 7 has a few problems with the >scenes.cach and inselcache.txt (random generator)! these are two files at a neuinstalation >not exist and therefore there are no . Problem in our fall, taking over the old >installation, from eg xp, they must be two files are deleted. they are located here: C: \ >Program Files (x86) \ Anno 1503 \ Scenes C: \ Program Files (x86) \ Anno 1503 \ Scenes \ >Islands which were the original paths. now should go play again."

Sorry, it was translated from German and I couldn't find the original phrase to provide for you. Let me know if this helped at all.