Steps to Fix Printer Spooler SubSystem App Error.

You may experience any of the following symptoms on your Windows XP-based computer.Generally you can see Printer Spooler Subsystem Error while accessing the printer and Fax Folder,sometime during printing,sometime when you try to start the Print Spooler service.

The Error message is like this

Spooler subsystem app has encountered a problem and needs to close.

This issue may occur if a third-party printer driver or a third-party service that is installed prevents you from adding printers, or if the third-party printer driver or the third-party service affects the functionality of a newly installed printer.

To fix this problem automatically, click the Fix this problem link. 

Then click Run in the File Download dialog box, and follow the steps in this wizard.

Download

Note The Fix it solution can be run in either Light mode or Full mode.Light mode makes changes to the spooler that should not require you to make any additional changes. Full mode will restore the print spooler to default settings and require that you reinstall your printers.

You can verify that the print spooler service is running. To do this, follow these steps:

1. Click Start, right-click My Computer, and then click Manage.
2. Expand Services and Applications, and then click Services.
3. In the details pane, right-click the Print Spooler service, and then click Start (if it is stopped).
4. Exit Computer Management.

 If you want to manually remove this error message visit Microsoft Support page