For more information, please visit the following pages:

• Windows-Update-Agent
• Microsoft Corporation

Latest user agents:

• Windows-Update-Agent/7.9.9600.16422 Client-Protocol/1.20
• Windows-Update-Agent/7.9.9600.17415 Client-Protocol/1.21
• Windows-Update-Agent/7.9.9600.19915 Client-Protocol/1.21
• Windows-Update-Agent/7.9.9600.18756 Client-Protocol/1.21