Scheduled task in the foreground

How can I launch an app in the foreground from Task Scheduler(launching user!=current user). App is made in C++ with MFC and can be changed if new code is necesary. Solution must work on Win98 ans WinNT 4.0.
Thanks a lot,
BetaTester
[248 byte] By [BetaTester] at [2007-11-18 20:33:51]