I'm glad you got one issue resolved.
In regard to the second issue....You know, I've NEVER had to mess with that HTTPURLLOC table.
If you setup the webdispatcher correctly, and call the webdispatcher URL/port, then why would you ever need to mess with it?
I guess what I'm saying is...it isn't clear to me what you are trying to do there.
In my opinion, if you had a ECC system, RP1, default client 100. hostname rp1.company.com port 8000.
and you had a web dispatcher WP1, talking to the RP1 message server. hostname wp1.company.com port 8190
wouldn't you just open a browser, go to http://wp1.company.com:8190/nwbc
should work. Should NOT show the RP1 host...but is now reverse proxy/LB for RP1
OR are you saying you want folks to launch to the SAP web nwbc directly from the tcode inside SAPGUI?
--nick