Using a Samsung Galaxy S3 to connect to a home VPN server over a public Wi-Fi network.

Using a Samsung Galaxy S3 to connect to a home VPN server over a public Wi-Fi network.

Using a Samsung Galaxy S3 to connect to a home VPN server over a public Wi-Fi network.
I'd like to securely browse the web using my Galaxy S3 while on a public Wi-Fi connection. I am thinking that a home VPN server would be the best way to go. The S3 has a VPN client built into the phone.
Questions
Can I use the built-in VPN feature on my phone with ANY VPN server software? Or would I need to download an app that is specific to the VPN server application?
Obviously my home computer would need to be powered on for the VPN server to work, but do I need to be logged into Windows for it to work? Or can it run as a service?
Notes
My phone is not rooted and I would rather not root it
My service provider is Verizon Wireless
I have Windows 7 Pro at home
I'd like to use a free solution, if possible
P.S. Here are some helpful links for anyone else who is looking to do this

Android 4, better known as Ice-cream sandwich, is one such exciting version that allows you to configure VPN and use internet in totally anonymity without hassles.

1. Navigate to the settings:
2. Select "More..."
3. Select "VPN".If you havent done so yet, you might need to set a PIN for security reasons now.
4. Select "Add VPN network"



5. Now you need to enter the VPN server details.
Name: Anything you like,
Type: PPTP
Server address: Any server from the list at "PPTP servers"in the VPN control panel
6. Check "PPP encryption (MPPE)" and click on "Save".
7. Youll see the new connection now.Tap it.
8. Now enter your login details:
Username: Your VPN account username
Password: Your PPTP password
(note, this is not your account password!
Get the PPTP password from the server page).
Check "Save account information" and tap "Connect".


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