When accessing Messaging Security Agent Configuring Policy and Real-time Monitor, it shows a System error message of "Error Number: -1073741819". This error is due to ComputerName\Users group lacks of the privileges for Messaging Security Agent folder "..\Program Files\Trend Micro\Messaging Security Agent\web" and its parent folder.
- Go to the Start menu then Run and type and services.msc.
- Stop Trend Micro Messaging Security Agent Master Service.
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In the "..\Program Files\Trend Micro" folder, go to Properties > Security > Advanced.
This "..\Program Files\Trend Micro" directory is the folder before Messaging Security Agent folder and not the one before Security Server folder. -
Add the following privileges to ComputerName\Users group for the folder and then click Replace all child object permission entries with inheritable permission entries from this object.
- Read & execute
- List folder contents
- Read
- In the "..\Program Files\Trend Micro\Messaging Security Agent\web" folder, go to Properties > Security > Advanced.
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In the Advanced Security Settings for web folder, confirm that the privileges of ComputerName\Users group has inherited from the parent folder.
- Clear the Browser Cache.
- Go the Services and start Trend Micro Messaging Security Agent Master Service.
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You should be able to open the Messaging Security Agent Configure Policy or Real-Time Monitor successfully.
If the issue still occurs, contact Trend Micro Technical Support and provide the Case Diagnostic Tool (CDT) log generated on the server.
