Thanks, it worked. I am using a proxy+ server on a windows98 machine and I work on another pc connected through lan. Just one more point....
while trying to start the LimeWire use the full command line code which should be
"C:\Program Files\Java\j2re1.4.0\bin\javaw.exe" -Xss64k -Xms4m -Xminf0.10 -Xmaxf0.25 -Dsun.java2d.noddraw=true -jar RunLime.jar |