BrowserUk,

Thanks for your response (plus the others). Your feedback got me thinking and I switched my output monitoring from the Parent to the Child window and got Ctrl-S/Q to work fine.

I am using a socket connection between the Child/Parent to passing info back to parent. I launched the child with a 'system 1, ...' to get an async relationship between the two processes. I would like to eventually still trap the Ctrl-S/Q (from the parent) and halt all child processes, so your comments on Win32:Process were helpful and later I plan on experimenting there.

Thanks very much,

John B