>Hi!
>
> Try to use low-level file functions. For example, in App1 make file using FileCreate function. Close it and than use FOPEN("MyFile",12), that is similar to exclusive use. In the App2 use following to check if App1 is still running:
>

>  local lnHandle
>  lnHandle = FOPEN("MyFile",12)
>  IF lnHandle>0
>    FCLOSE(lnHandle)
>    && Application 1 don't working now
>    ...
>  ENDIF
>

>
>Above code does not require error handling, when working with exclusive tables require error handling.
>
>HTH.
>

Thanks. Although that is a cleaner implementation, I still have the same concerns though, will the file become "unlocked" if App1 crashes? Or will the OS hold that file?

I've experimented a little, and it looks "ok" but I want to be sure before I put it into code.

-Sam