For a step by step tutorial how to enable the Security tab in Windows XP and how to add users, go to http://whoozoo.co.uk/winxpFilePerms.htm
After you do that, please review our documentation on how to add the ASPNET user and give it sufficient access rights.
Copyright © 2016, Progress Software Corporation and/or its subsidiaries or affiliates. All Rights Reserved.
Progress, Telerik, and certain product names used herein are trademarks or registered trademarks of Progress Software Corporation and/or one of its subsidiaries or affiliates in the U.S. and/or other countries. See Trademarks or appropriate markings.