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I installed Sage 300 ERP and Sage HRMS on a terminal server environment last week and was running into an issue with Windows Installer Coordinator. Often when I opened a UI, I would get a Windows Installer Coordinator popup that would run indefinitely. It actually prevented me from even running HRMS.
I found that there is a setting in Group Policy that disables Windows Installer Coordinator. I hope this helps if you run into this issue on a terminal server environment.
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