Plz suggest me on this problem

Question

hey friends
##problem1
when i am working on my dos prompt to run my rmi programs
it provide the following error
RemoteException has occured in server thread; nested Exception is:
java.rmi.UnmarshallException:
while if i run this program to another machine it gives no error and work properly
it means there is something wrong with my dos setting but i am not able to detect it
plz give ur valuable suggestion
one more thing sometimes my j2sdk javac server compile classes but does not run class when i write java classname(it says class not found exception)
for this i try to increase my default buffer size 50 to 300 and then it was working fine but #problem 1 remain same as it is

Answer 1

It sounds like a classpath problem.
Try on dos command:
set path=.;C:\j2sdk1\bin
then enter
you may have to include -classpath . during your javac command as well