Yes, you wll need to upgrade the java version that is under the clgui folder, not for the entire OS.
For me, my java folder is located at c:quovadxqdx5.3integratorclgui
I do not remember how I upgraded mine. I think I installed java 1.3.1_20 or a patch, replaced the java folder with what java folder that got created, and then just uninstalled it.
If I remember correctly, there are some other posts in this forum that stated how other people did it. If you do a search on DST, you should get a few hits.
As always, be sure you have a backup of that java folder before replacing it..
I suggest making a copy of the entire quovadx folder on your XP box. It’s about 100MB total.
Let me know if I can do a better job of explaining things. It won’t offend me at all.
Austin