Can we run Remote Method Invocation Java client not from Windchill shell ?

I do not have issue in running RMI Java client from Windchill shell. 

I read from one of the discussion in the community which I thought we may just run it without Windchill shell by just adding wt.jar in classpath. However, it will get missing service.properties error when you try to use QuerySpec API.

Can we run RMI Java client without Windchill shell ?