I am a complete jEdit fanatic and it always has a place on my taskbar. jEdit is ver clever when running multiple versions each instance communicates over TCP IP so that all instances are identical. What if you don’t want that and want to have different file open in different instances of jEdit (or if you were using something like GoScreen). By default the shortcut for jEdit is something like:

“C:\Program Files\Java\jdk1.5.0_06\bin\javaw.exe” -jar “C:\Program Files\jEdit\jedit.jar”

But to stop the instances communicating to each other you need to use a “-noserver” switch:

“C:\Program Files\Java\jdk1.5.0_06\bin\javaw.exe” -jar “C:\Program Files\jEdit\jedit.jar” -noserver

I found the above in the wonderful jEdit userguide, chapter “starting jEdit“.