IDEA does a good job of importing settings from previous versions/builds.
However, the one file it misses is bin/idea.exe.vmoptions
I always have to manually change this as the defaults aren't big enough for my project.
This is also a bit of a pain when you use Vista, as Progam Files is protected and you need to elevate the permissions of the program you are using to edit it.
Could this be moved to a different directory?
Or just be picked up by the installer as part of importing previous settings?
The other thing is, that on uninstall, the file (and thus parent directories) doesn't get removed.
Can you add an option to the uninstaller to remove files/directories that weren't added by the installer?