Microsoft KB Archive/180941

= APPC Printing Misinterprets ASCII Data =

Article ID: 180941

Article Last Modified on 7/16/2004

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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 4.0

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This article was previously published under Q180941



SYMPTOMS
During printing, the parser prematurely terminates the ASCII Transparent section, and begins to interpret the data as SCS codes. When this occurs, the SNA Print service may log the following event in the Windows NT Application Event Log:

Event ID: 4101

Source: PPV5250

Description: SCS parser has detected a parameter error.



CAUSE
The Closeprinter routine is not setting a pointer to NULL, which may cause calls to open a print session to fail at a later time. This results in Print Server losing track of its position in the datastream, causing some of the data to be misinterpreted as SCS codes instead of transparent data.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section of this article. This problem was corrected in the latest SNA Server versions 3.0 and 4.0 U.S. Service Packs. For information on obtaining these Service Packs, query on the following word in the Microsoft Knowledge Base (without the spaces):

S E R V P A C K

Keywords: kbbug kbfix kbprint KB180941

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