Microsoft KB Archive/278937

= APPC Print Job with AVM Commands May Print Extra Lines =

Article ID: 278937

Article Last Modified on 12/15/2003

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APPLIES TO


 * Microsoft SNA Server 3.0 Service Pack 4
 * Microsoft SNA Server 4.0 Service Pack 2

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This article was previously published under Q278937



SYMPTOMS
An Advanced Program-to-Program Communication (APPC) print job that contains Absolute Vertical Move (AVM) commands may print with extra blank lines when you print through the host print service that is included with SNA Server 3.0 Service Pack 4 (SP4) and 4.0 SP2. This problems occurs only if the print session in SNA Server is configured to use a Printer Definition Table (PDT) file that includes a New Line (NL) definition.



CAUSE
The virtual print driver (Winvprt.dll) that is used by the host print service is not correctly updating the current print line when it processes a NL for a print session by using a PDT that contains a NL definition. An AVM command that is issued after a NL causes an incorrect number of Line Feeds (LF) to be issued because of the incorrect value for the current print line.



RESOLUTION
To resolve this problem, obtain the latest service pack for SNA Server version 4.0. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

215838 How to Obtain the Latest SNA Server Version 4.0 Service Pack



STATUS
Microsoft has confirmed that this is a problem in SNA Server 3.0 SP4 and SNA Server 4.0 SP2. This problem was first corrected in SNA Server 4.0 Service Pack 3.



MORE INFORMATION
For additional information about APPC printing, AVM commands, and PDTs, click the article number below to view the article in the Microsoft Knowledge Base:

195402 Absolute Vertical Move Command Handled Incorrectly If PDT Used

Additional query words: 2 3

Keywords: kbbug kbfix KB278937

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