Active network application - Manufacturer (no information)?

I am using Kaspersky Anti-Hacker version 1.8.180.0 Windows XP Pro US One of the active network application is: SYSTEM Process ID 4 UDP 445 TCP 445 TCP 1030 Manufacturer (no information)? The only rule I can create is to block those ports. Is there a way I can find more information about "SYSTEM" (Manufacturer information)? Information appreciated! Yves7