There's a way DeadEndKing (https://www.deviantart.com/deadendking) found out to help with the windows 7 shimeji problem-
"Hello there! It's DeadEndKing (That one guy who'll swamp you with shimejis for a few weeks and then mysteriously drops off the face of deviantart until a week or two later when he swamps your group yet again), I just wanted you to know that I have found a way to get around the Java problems that 64 bit users encounter with the Shimeji program. All you need to do is downgrade your Java using a link found here:
http://www.mediafire.com/?e6e2i53jgna9i75
Other comments on this problem:
~ccucco (https://www.deviantart.com/ccucco) "There is now a way to run Shimeji without the use of