On a home network I want to use internet sharing with out using any proxy software.
Is there any way to configure windows to share internet into my network?

Your question seems a little misleading -- this is how most networks work

A modem is connected to the internet -- a router processes the modem signal

And sends it to computers in your network -- they share the internet -- being

Part of the network allows them to share files and folders -- also any printers

On the network... The computers need to be set up to share these features