Using absolute links:

Click here to view the source of this page.

The above statement is:

<a href="view-source:http://www.jsiinc.com/tip1300/rh1399.htm">Click here to view the source of this page</a>.

To use the FILE protocol, you must use a fully qualified URL:

<a HREF="view-source:file://c:\temp\filename.htm">a filename.htm</a>