ipcsocket between power builder and xojo apps

I have been able to start a xojo app from another xojo app and send some initial parameters like an id number and username to the second app from another xojo app using ipcsocket on both.
Now I need to do the same but from within a Powerbuilder application. I asked the power builder developer but he is not aware of something like ipcsocket in PB. Any work around or suggestion?
Thanks in advance for any help.

Use a tcp socket on localhost?