I need an application firewall which will work on Vista/Win7 and XP. All Win versions must be supported.



It can be clone of WinPooch but GUI must be coded in DELPHI.

Also you can use other open source alternatives.



Registry protection should be available in Application Firewall as well as file overwriting,modifiying protection for critical files like hosts file, system files of Windows,etc..



My preferred language is Delphi. But you can write drivers in other languages too.