Topic Last Modified: 2010-04-14
Microsoft SIP Processing Language (MSPL) server applications are script-only applications that use the MSPL scripting language instead of the Communications Server API. Some MSPL server applications are specified as critical. If a script is critical, the script must start during system startup in order for Communications Server 2010 to start. If the script fails while Communications Server 2010 is running, the server does not shut down, but it stops sending traffic to the script, and it writes errors in the event log.
You can use Communications Server Control Panel to mark Microsoft SIP Processing Language (MSPL) server applications as critical or unmark them.
Not all scripts support this option. For instance, the DefaultRouting script is marked as critical, and this option cannot be changed for DefaultRouting.
To mark or unmark an MSPL server application
Open Communications Server Control Panel.
In the left navigation bar, click Topology.
Click the Server Application tab.
Click a column heading to sort the applications, if needed, and then click the server application that you want to modify.
Click Mark as critical or Unmark (if the script supports this option).