After you start a non-interactive application with the AT.EXE scheduler
program, one or more of the following symptoms occur:
- The application appears to hang.
- The application remains loaded in memory even though it should quit.
- You are unable to quit the application.
- You can see the process with Process Viewer but Process Viewer is unable
to kill it.
- If the application is trying to access a device, for example a tape
drive, you cannot access the device until the application is cleared
- Memory is not freed if the application fails, and if different
applications are hung in memory, system performance degrades.
- Some applications allow multiple instances; and if they do not clear
from memory, performance degrades.
NOTE: Applications you start with the AT.EXE command, by design, do not
appear in Task Manager.
To remove the non-interactive application from memory after it does not
quit, do one of the following:
- Reboot your computer.
- Use the Windows NT Resource Kit utilities TLIST.EXE and KILL.EXE. These
utilities allow the administrator to detect and then clear the
application from memory based on the application Process ID.
Tlist.exe and Kill.exe utilities are available in the Windows NT
Resource Kit versions 3.1, 3.5, and 3.51. Help for both utilities is
available from the command line. (For a hung process use the Kill -f
NOTE: AT Scheduler has no way to control an application already started.