I can not understand the difference between these two concepts "service or service-like process".
At msdn WinHTTP vs. WinINet page says:
When selecting between the two, you should use WinINet, unless you plan to run within a service or service-like process that requires impersonation and session isolation.
At msdn note for WinInet function says:
Note WinINet does not support server implementations. In addition, it should not be used from a service. For server implementations or services use Microsoft Windows HTTP Services (WinHTTP).
What "service or service-like process that requires impersonation and session isolation" means?
"WinINet does not support server implementations" refers to run on Windows Server?
If my application run with IIS Have I to use WinHTTP instead WinInet?