I think this is really a hatemail question rather than Tcl. However you get a button to perform a shell-like action in HTML, the execution it invokes is really the Tcl or Tk shell (Tcl83, say). It depends whether your host machine is Windows or UNIX (or Mac I suppose but then I'm lost). If it's Windows, the execution syntax is something like "tclsh83.exe <script name>". If it's UNIX, then the script includes "#!<path><app>" and must be globally executable (<path> is like /usr/local/bin and <app> is like tclsh8.3), then the execution is the script itself. Bob Rashkin
rrashkin@csc.com