Symptoms

When the Arcana Scheduler is installed on a computer running Windows Server 2003 (SP1 or later) or Windows XP (SP2 or later) with Data Execution Prevention (DEP) enabled, the Schedule Administrator and Configuration Editor may fail to run.

If Dr. Watson (or another application exception handler) is not installed, running one of these tools may appear to produce no result, or the program may appear briefly in the Task Manager and then disappear.

If Dr.Watson (or another application exception handler) is installed, it will report a failure of the program (adscheduleadmin.exe or adschedulerconfig.exe)

Resolution

Add "adscheduleadmin.exe" and "adschedulerconfig.exe" to the Data Execution Prevention exception list in Windows.

To add programs to the DEP exception list:

  1. From the Windows Control Panel, open the System tool.
  2. In the Performance section of the Advanced page, click Settings.
  3. Select the Data Execution Prevention page.
  4. Under the exception list, click Add... and browse to the Arcana Scheduler program directory (by default, "c:\program files\arcana development\arcana scheduler") to add the specified programs.

More Information

Note that this problem does not occur on all computers with DEP enabled; if you are not experiencing the problem there is no need to add exceptions for the Arcana Scheduler programs.