Cool...this gave me big surprise that the .NET applications as a single EXE that runs without the .NET Framework.Thanks to tameem who gives this nice information.

How does it work?

Thinstall first inspects your program to find all the code it uses. Next Thinstall packages these files into a single EXE utilizing patent pending Virtual Registry and Virtual Filesystem technology to relocate .NET Framework directories so all files are always loaded from your EXE package. The system version of the .NET framework is never used and it does not matter if the user has v1.0, v1.1, both or no version at all.

Thinstall's virtual registry allows .NET Framework's ActiveX controls to be visible to your application without system changes. These ActiveX controls are listed in the text file
mscoree.dll.threg.

Thinstall relocates the Global Assembly Cache and Native Images directory to reside inside your EXE package. This prevents any conflicts from external configurations. These settings are controlled in the text file fusion.dll.threg.

Yes i agree u have lots of question ...have look on this give your comments too..

http://thinstall.com/help/index.html?linking_netframework.htm

Suresh Behera[Microsoft MVP .Net,India | MCAD.NET(CM) | MCSD.NET(EA)]