1. The materials in the PLPSOCK sub-directory are identical to the previous PLPDSOCK.EXE download. They contain two fixes (although only one of those fixes was actually documented in the previous PLPDSOCK.TXT readme):
a. PLPD accepts jobs from UNIX print queues and passes them to NetWare print queues. If PLPD is sending jobs to an Alias object which in turn points to a queue, several IPX sockets can be consumed for each print job, and not released unless PLPD is unloaded. Eventually all IPX sockets can be consumed. This situation has been corrected.
b. PLPD was not successfully sending "out of disk space" messages to SNMP agents. This has been corrected. HOWEVER, in some environments, this fix was later found to cause "out of disk space" errors even when there was plenty of disk space. In such cases, PLPD would stop accepting print jobs. This side-effect was discovered after all maintenance of the product had been discontinued. One work-around that has been successful is to set PLPD to spool to a different NetWare volume. That is configured in UNICON -> Manage Services -> Print Services -> Set Up Print Spool Directory. Alternatively, the older PLPD materials in the PLPDSOC2 location do not contain the SNMP fix, and therefore will not experience this potential side-effect.
2. The materials in the PLPDSOC2 sub-directory were actually built before the PLPDSOCK materials. PLPDSOC2 only contains fix "a". Fix "b" is not present, so its potential side-effect will not occur. The PLPDSOC2 materials were not originally scheduled for public release. While they contain unique dates in the "modules" information, they do not contain a unique version number. Their version numbers match those of some older builds.
If this product had still been receiving engineering maintenance, a new fix for the SNMP issue could have been devised which did not cause any side-effects. However, since the product does not receive further maintenance, the option which gives customers the most flexibility is to offer these alternative materials which only contain fix "a".
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