It's possible to run Tcl scripts a services under Microsoft Windows NT.  Matt Newman has done a nice job of producing a wrapper, ""tclsvc"" that lets any event-driven Tcl script run as a service.  Get it from 
   http://www.sensus.org/tcl/index.htm 

or 

   http://ourworld.compuserve.com/homepages/mmg_kraus/tclcornr.htm

I find the latter to be a somewhat nicer distribution.  I'm working on beefing up the documentation but I'm not sure where to put it.  Give me a hollar if you want a copy of my draft. -- [Chris Nelson]