Check Excel RTD servers
Supported on: At least Windows Server 2008 R2 or Windows 7
Registry
HKCU
software\policies\microsoft\office\16.0\common\com categories Value name: checkexcelcreatertd
Enabled: checkexcelcreatertd = 1
Disabled: checkexcelcreatertd = 0
Description
This policy setting determines whether Office checks that a RealTimeData (RTD) is properly categorized before loading it. If you enable this policy setting Office only loads properly categorized RTD servers. If you disable or do not configure this policy setting, Office does not check that an RTD server is properly categorized before loading it.