Hi , im working at the same problem, aiming to install software on remote pc's.
at this time i CAN install by example the ms office package on a remote pc during an other user may be working on the system. I log on to the remote host as administrator, having full access to the system incl. registry an run the setup program under this rights. as you, i CANNOT get any output / performing input to the running programm. i just initiated a projekt where we develop a littel windows programm which should get the a process id as input, get the handle of the desktop window by the system and arrange the window according to the process under the desktop window. if it would work i could run central administrated (setup) programs on remote pc's and unpriviledged users could change settings.... -- Frank Sutor GF ZIT kd
