What is "IP Helper" in my Windows 8 service list? And how is "IP Helper" service related to iphlpsvc.dll?

"IP Helper" is a Windows 8 service that Provides tunnel connectivity using IPv6 transition technologies (6to4, ISATAP, Port Proxy, and Teredo), and IP-HTTPS. If this service is stopped, the computer will not have the enhanced connectivity benefits that these technologies offer. "IP Helper" service is provided by iphlpsvc.dll program file.

Detailed information on "IP Helper" service:

Service name: iphlpsvc
Display name: IP Helper
Execution command: C:\Windows\System32\svchost.exe -k NetSvcs
Dependencies: {RpcSS, Tdx, winmgmt, tcpip...}

"IP Helper" service is provided by a program called: iphlpsvc.dll:

Name: iphlpsvc.dll
Location: C:\Windows\System32\iphlpsvc.dll
Description: Service that offers IPv6 connectivity 
File version: 6.2.9200.16384 (win8_rtm.120725-1247)
Size: 894464 bytes
Modified: 1/9/2013 11:22:29 PM UTC

Disabling "IP Helper" service may cause issues when running Windows 8 system.

⇒"svchost.exe -k netsvcs" Services on Windows 8

⇒⇒Windows 8 Services Tutorials