>I'm using Main.prg (Set as Main) to start my app which consists of a form with little visual
>interface. When finished, it will Init() {assign parameter list to form properties and delete
>a status file}. Start a timer that runs once to interface with a specialized communication
>ActiveX, process some files as needed, call another communications app, write a status
>file after the 2nd app quits and terminate. I've tested with a quit button that runs
>thisform.queryunload() and an if ! thisform.release() - MessageBox (yada, yada)- endif
>Main.prg does Sys(2333,0); _vfp.autoyeild - .F.; a do form "xxxxxx", on shutdown do
>mvShutdown (really just a quit) and a read events.
>
>My Problem:
>
>The VFP form won't release. When I try to make changes and recompile the app, I get a
>sharing violation. Same if I try to delete it. I added Keyboard "{CTRL+F4}" and
>Keyboard "{ALT+F4}". but still no joy. I know that the sharing viloation is happening on my NT 4.0 SP5 system. I haven't run it on a Win98 system, yet.
>
>Anyone know what I'm doing wrong? The ActiveX control has a visual presence, was
>added to VFP 6.0 options and is Initialized as an object on the form .

Sounds complex, could be a number of things from Activex incompatibility to unresolved references to a problem mixing _vfp & TLs. Does it work without the activex? Did you set the reference .NULL.? You know that ON SHUTDOWN does not work properly with TLs open?