Okay, the road so far... and what I've learned via tech support, and a response to your questions...

We are on a load balanced Terminal Server environment, with 5 total servers, three of which are load balanced, and one is a standalone... 

We are using printer redirection... I'm personally voting for using TSPrint here, to resolve some other printing / print speed issues... but this isn't really the main issue. 

The servers have, buried deep in their registries, every redirected printer, that has ever existed, for a moment... hoping we can put in a GPO to simply remove any redirected printers at user log off... 

I went on a registry hunt, and found a TON of redirected printers.... we're talking thousands, plural here...  but none of the other programs hosted on the terminal servers, see any of these printers, at all, just the most recently redirected, if that makes sense. 

I'm sure there's going to be some "manual registry cleanup" I'm going to have to do, after "inheriting" this "mess". 

All that being said, it seems to be both user profile, and program specific to EasyAcct. 

I passed this on to tech support, and here's a possible solution they gave. I'll have to repeat this process on all terminal servers, to see if it makes any difference. 

Tech support said that the file deletion SHOULD resolve the issue, but, I know my luck. 😄

Per Tech Support this morning... 

Uninstall Printer using Registry Editor

The Windows Registry is the collection of Windows Settings’ databases. It is in this Windows Registry that the settings of most software programs and hardware are stored. The Registry Editor is the gateway to making edits or scanning the existing program settings. This, too, can be used to uninstall printers from your Windows 10 PC.

• In the Run command, type regedit.exe and press enter to open the Registry Editor.
• In order to locate the printers linked with your computer, enter the following key.

HKEY_CURRENT_USER\SOFTWARE\Classes\Local Settings\Printers\Roamed

 

• Use the following key, then.

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\Printers

 

• This will help present you with the list of printers, from where you can right-click the particular printer and click ‘Delete.’

 

1. If necessary, search for the EZPRTSET.DAT file located in the C:\EASYW folder and delete it.
2. Reset the Print Preferences.