Knowledge Base

Using LUA_correlator Field Causes WNAP to GPF

Article ID: 160715

Article Last Modified on 11/26/2003

Microsoft SNA Server 2.0
Microsoft SNA Server 2.1
Microsoft SNA Server 3.0
Microsoft SNA Server 3.0 Service Pack 4

This article was previously published under Q160715

SYMPTOMS

When acquiring a session with a 16-bit LUA application using the SNA Server Windows 3.x client software, the following error may be reported by Drwatson.exe:

WNAP had a 'Null Selector (Read)' fault at WINRUI.

CAUSE

Using the LUA_correlator field instead of the LUA_sid field within the RUI_INIT() will cause this error.

RESOLUTION

To resolve this problem:

Use the LUA_SID field in the RUI_INIT() instead.

There is no functional difference.

STATUS

Microsoft has confirmed this to be a problem in SNA Server versions 2.0, 2.1, 2.11 2.11SP1, and 3.0. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

Keywords: kbbug kbnetwork KB160715