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Navigate to the Admin tab, expand the Extensions folder and double click on Rover.
Add the license text ( if you do not have a license text, please contact Catch Sales) to the License Text field:
Operating Systems (Client)
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http://download.microsoft.com/download/2/7/3/273CB528-CAB3-4E8D-88D2-4477F0A1DAE4/enu_vs_common/netfx_ult/dotnetfx45_full_x86_x64.exe
It is approximately 50mb in size.