Citrix states in their article: CTX050281

CTX050281 - Single Sign-On Fails by PNAgent inside an RDP Remote Desktop Session from an XP Professional Workstation

This document was published at: http://support.citrix.com/kb/entry.jspa?externalID=CTX050281

Document ID: CTX050281, Created on: Nov 6, 2002, Updated: Jun 7, 2003

Products: Citrix MetaFrame XP 1.0 for Microsoft Windows 2000, Citrix MetaFrame XP 1.0 for Microsoft NT 4.0 Server Terminal Server Edition

Apply the recommended Microsoft patches to the client devices.

Problem Description

When using the PNAgent Version 1050/1051 configured for Single Sign-On inside a remote desktop session from one XP Professional workstation to another XP Professional workstation, the user may receive the following error message:

"Username and Password are Incorrect."

The settings for PNAgent change from using Single Sign-On to Prompt User.

When using the PNAgent at the XP Professional workstation’s console, Single Sign-On works as designed.

Resolution

Microsoft TechNet Article Q320145, now part of Microsoft Service Pack 1 for XP workstation, replaces three files (Winlogon.exe, Winsta.dll, and Termsvr.dll) all dated 8-29-2002. The updates need to be applied to the XP Professional workstation hosting the PNAgent