The launch and activation of security descriptor for the COM Server application with
CLSID is invalid. It contains Access Control Entries with permissions that are invalid. The requested action was therefore not performed. This security permission can be corrected using the Component Services administrative tool.
Permissions for DrWeb DCOM object should be corrected. It can be done following the steps below:
1. Go to Start, Administrative Tools, Component Services, Component Services, Computers, My Computer, DCOM Config, DrWebCom
2. Right click and select Properties. Select Security tab and change Launch permissions to Default.
3. Restart DrWeb.