Last Byte of Transparent Section Interpreted Incorrectly

• Microsoft SNA Server, version 3.0 SP1

SYMPTOMS

The last byte in a transparent section gets interpreted as being outside the transparent section when the transparent section is immediately preceded by a control character (IE - "0D"). For instance, the following sequence has '0D' (carriage return) followed by a transparent section starting with '35'. In this case, the 1B (Esc character) would be inappropriately dropped and, therefore, the remaining bytes would be sent to the printer without the leading Esc character. This would cause the remaining bytes to be printed when they were actually intended to be part of the escape sequence.

0D35011B 5081F2F2 D9

CAUSE

When there is a control character immediately preceding transparent sections, there was a bug in the code which caused the print server to believe the transparent section to be one byte shorter than it really was.

RESOLUTION

A change was made to check whether a transparent byte has actually been sent to the printer before decrementing the number of transparent bytes left to be processed.

STATUS

Microsoft has confirmed this to be a problem in Microsoft SNA Server, version 3.0 SP1. A supported fix is now available, but has not been fully regression-tested and should be applied only to systems experiencing this specific problem. Unless you are severely impacted by this specific problem, Microsoft recommends that you wait for the next Service Pack that contains this fix. Contact Microsoft Product Support Services for more information.

Additional query words:

Keywords : prodsna snaprintservice
Version : WINDOWS:3.0 SP1
Platform : WINDOWS
Issue type : kbbug