You want to install the .NET Framework on another computer so that it can run custom .NET applications.
Use the redistributable Dotnetfx.exe executable.
Visual Studio .NET setup projects can’t be used to install the .NET Framework. Microsoft recommends that you install the .NET Framework on clients that don’t already have it using the Dotnetfx.exe redistributable file before you attempt to install a .NET application. You can obtain Dotnetfx.exe in several ways:
You can download Dotnetfx.exe from the Microsoft download center at http://msdn.microsoft.com/library/default.asp?url=/downloads/list/netdevframework.asp.
A client can download Dotnetfx.exe using the Microsoft Windows Update feature. ...