Microsoft KB Archive/241138

= SNA Server Windows 3.x Client Causes Access Violation on Windows 98 =

Article ID: 241138

Article Last Modified on 2/22/2007

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APPLIES TO


 * Microsoft SNA Server 3.0 Service Pack 4
 * Microsoft SNA Server 4.0
 * Microsoft SNA Server 3.0 Service Pack 2
 * Microsoft SNA Server 3.0 Service Pack 3
 * Microsoft SNA Server 3.0 Service Pack 4
 * Microsoft SNA Server 4.0
 * Microsoft SNA Server 4.0 Service Pack 1
 * Microsoft SNA Server 4.0 Service Pack 2
 * Microsoft SNA Server 4.0 Service Pack 3
 * Microsoft SNA Server 4.0 Service Pack 4
 * Microsoft Host Integration Server 2000 Standard Edition

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This article was previously published under Q241138



SYMPTOMS
The SNA Server Windows 3.x client software (Wnap.exe and Win3270.exe) may fail with an Access Violation error in the following configurations:
 * When you install on a computer running Windows 98 Second EditionAfter you install Microsoft Internet Explorer 5 on Windows 98, where the SNA Win 3.x client had been working with no problems prior to the upgrade to Internet Explorer 5

On computers running Windows 98, the Access Violation error message may be similar to the following:

WNAP caused a general protection fault

in module WNAP.EXE at 0005:00000a10.

Registers:

EAX=ffff2864 CS=2eb7 EIP=00000a10 EFLGS=00000246

EBX=014f2864 SS=2e87 ESP=000025ca EBP=000025de

ECX=00000000 DS=2e87 ESI=00022d50 FS=2e7f

EDX=00002f2f ES=2f2f EDI=00002e6f GS=0000

Bytes at CS:EIP:

ff 1e c4 0c c4 1e 2c 01 26 c7 87 35 27 02 00 b8

Stack dump:

28642eef 2d502f2f 62002e6f 28648928 2e872f2f 043425fd 2eef2ec7

2e6f2d50 00000200 00032f2f 2e872622 2eef0b90 270f2e87 17d79e9d

00000000 00100000



CAUSE
When you run the SNA Windows 3.x client on the above Windows 98 configurations, the SNA client components are exhausting their local program stack space, which results in unexpected failures in the SNA client components.



RESOLUTION
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.



WORKAROUND
If the problem started to occur after you installed Microsoft Internet Explorer 5, to work around the problem, remove Internet Explorer 5 and install a previous version of Internet Explorer.



STATUS
Microsoft has confirmed that this is a problem in SNA Server 3.0, 3.0 SP1, 3.0 SP2, 3.0 SP3, 3.0 SP4, SNA 4.0, 4.0 SP1, 4.0 SP2, 4.0 SP3, and 4.0 SP4.

This problem was correctd in Host Integration Server 2000.

Keywords: kbbug kbfix kbqfe kbhotfixserver KB241138

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