How to convert files into XPS format in Windows Vista?

How to transform files and pictures into XPS form. 
Please refer to the following contents.
By selecting Microsoft XPS File Writer as a printer, you can transform any software into XPS files. 

 
Please refer to the following steps. 
*Example of using WordPad to create files and save them in XPS format.
1.Click File on menu bar, and then click Print.

2.A Print window will appear, click Microsoft XPS File Writer, and click Print.
3.A Save the file as window will appear, type any file name and save the file.