contains arbitrary binary data.  The data is represented
exactly in Tcl, including any embedded nulls.
<P><DT><A NAME="M14"><B>none</B></A><DD>
The registry value contains arbitrary binary data with no defined
type.  The data is represented exactly in Tcl, including any embedded
nulls.
<P><DT><A NAME="M15"><B>sz</B></A><DD>
The registry value contains a null-terminated string.  The data is 
represented in Tcl as a string.
<P><DT><A NAME="M16"><B>expand_sz</B></A><DD>
The registry value contains a null-termi