In the course of two days I have had two clients with similar issues getting errors like Line: 2225 Error:86 [SWPROM] in the Sage 100 activity log.   Not the exact same errors, but similar.

The commonality seems to be that it happens to one user or workstation (not sure which at this time).  One is on Sage 100 Advanced  2016.5 the other on Sage 100 Advanced 2014.?.   In both cases Sage 100 seems to be hanging up during processing. Reviewing the windows event viewer I'm seeing a lot of error events referencing SIdebySide 33 which I can't claim to have ever seen before.  Googling I found some references to incompatible versions of various software, but nothing that really seems directly on point.  I really don't know if this is coincidence or not.  One client indicates they had some software updates recently, the other does not.

 In the first case  it happens during S/O Invoice printing at the end of the day (to PDF).  I haven't been able to see this one when the problem was actually occurring yet.

In the other case they were doing purchase order daily receipt registers (I think they had it in a few other places too).  In P/O, the users computer looked like it was just hung up with the processing window still on the screen but nothing was happening.  In another instance the processing window just disappeared.  When they tried to restart, it claimed that the batch was in use.  Had them log out and killed any running processes from the task manager and it appeared to be ok.

I can find only limited references to [SWPROM] errors in the knowledgebase or Sage City.

I know that [SWPROM] is part of Sage 100 files that are installed, but I don't have a clue as to what it is. Anyone know?

Any ideas?