If the Windows SNMP service is not installed, follow these steps:
Log on as an administrator or a member of the Administrators group.
Click Start->Control Panel->Add or Remove Programs->Add/Remove Windows Components.
In Components, click Management and Monitoring Tools, but do not select or clear its check box. Then click Details.
Select the Simple Network Management Protocol check box and click OK. Then click Next.
Insert the CD containing the Windows SNMP Service or specify the complete path to the location at which these files are stored.
The SNMP service starts automatically after installation.