Use tf.exe in the command line.
In the following examples, the %PathToIde% is usually on a path like this: %ProgramFiles%\Microsoft Visual Studio 9.0\Common7\IDE, or on Windows x64: %ProgramFiles(x86)%\Microsoft Visual Studio 10.0\Common7\IDE (depending on Visual Studio version and installation settings).
Example for get:
cd C:\TFS\Arquitectura
"%PathToIde%\TF.exe" get $/Arquitectura/Main /recursive
Example for checkout:
cd C:\TFS\Arquitectura
"%PathToIde%\TF.exe" checkout $/Arquitectura/Main /recursive
Example for checkin:
cd C:\TFS\Arquitectura
"%PathToIde%\TF.exe" checkin $/Arquitectura/Main /recursive
See for more information on the tf commandline.