We just encountered a massive slowdown in printing. Experienced it on Win7, 8.1 and 10. Both MAS200 4.4 and Sage 100 2016 test deployment. Eliminated AV, network, hardware, host servers as the problem.

Symptoms were a long delay for the print panel to appear across all the modules, and ranged from 30 seconds to 4 minutes before appearing. We discovered that a new profile on a computer experiencing the problem did not have the slowdown; the panel appeared in 4 seconds.

Long story: many hours of troubleshooting, uninstalling, reinstalling, testing, network sniffing, scouring forums, malware scans... Turns out the network print server had a runaway process, consuming the CPU. Printing outside of SAGE100 was working (albeit slow - in hindsight), so it was not considered while troubleshooting the problem. A new profile had no network printers installed, thus the quick panel. Me on the other hand, having all the network printers, took 4 minutes.

I guess the program queries the installed printers before displaying the panel on screen and will wait for the response from all the printers.

Short story: Network print server had a hosed process. The more network printers installed, the longer the delay before the print panel was displayed.