ugs_router doesn't open the routing module.
It is used (depending on ???) to find an existing NX session & use that, instead of always opening a new session (useful in a Teamcenter environment)
It (indirectly) calls ugraf.exe, which is the main NX executable (which can then be used for modeling, drafting, CAM, routing, etc. as your license file allows)
Production: NX10.0.3.5 MP16/TC11.2
I'd rather be e-steamed than e-diseaseled