How to manipulate objects in another Exe program?

I saw an excellent thread in this forum before, regard manipulating forms, controls in another exe program but now just can't find it.

I would like to manipulate menu, forms and controls in another exe program through VB code. I am looking for sample codes. Thx for help!

I think this is only possible when the EXE in question is compiled as an activex EXE project, not certain though.