hi, ive played this server before and i want to play again, however im having some problems.

-Basically i think Kaspersky's firewall is causing me grief (ive turned it off and restarted my machine and it has not helped)
-I've exhausted all the options i could find and 2 hours later i cannot solve this. I have tried to enable file extensions on .jar files among other things.

So this is what happens when i try to play:
i download the .jar file
click open/save+open
and it does not respond

any help would be greatly appreciated