COMPRO IP60 User Manual page 56

b. Ensure that the ActiveX had been correctly registered with your Internet
Explorer. Please check that you've got both the ComproClientActivex
and USActiveX control components registered under Tools -> Manage
Add-ons.
c. Please ensure that your security setting under Internet Explorer allows
the installation of ActiveX component by adding the IP address of the
camera to the list of trusted sites in Internet Explorer.
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IP60 IP Camera User's Manual