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hlp/en/tcl/registry.htm
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hlp/en/tcl/registry.htm
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<HTML><HEAD><TITLE>Tcl Built-In Commands - registry manual page</TITLE></HEAD><BODY>
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<DL>
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<DD><A HREF="registry.htm#M2" NAME="L947">NAME</A>
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<DL><DD>registry - Manipulate the Windows registry</DL>
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<DD><A HREF="registry.htm#M3" NAME="L948">SYNOPSIS</A>
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<DL>
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<DD><B>package require registry 1.0</B>
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<DD><B>registry </B><I>option</I> <I>keyName</I> ?<I>arg arg ...</I>?
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</DL>
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<DD><A HREF="registry.htm#M4" NAME="L949">DESCRIPTION</A>
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<DL>
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<DD><A HREF="registry.htm#M5" NAME="L950"><B>registry delete </B><I>keyName</I> ?<I>valueName</I>?</A>
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<DD><A HREF="registry.htm#M6" NAME="L951"><B>registry get </B><I>keyName valueName</I></A>
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<DD><A HREF="registry.htm#M7" NAME="L952"><B>registry keys </B><I>keyName</I> ?<I>pattern</I>?</A>
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<DD><A HREF="registry.htm#M8" NAME="L953"><B>registry set </B><I>keyName</I> ?<I>valueName data </I>?<I>type</I>??</A>
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<DD><A HREF="registry.htm#M9" NAME="L954"><B>registry type </B><I>keyName valueName</I></A>
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<DD><A HREF="registry.htm#M10" NAME="L955"><B>registry values </B><I>keyName</I> ?<I>pattern</I>?</A>
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</DL>
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<DD><A HREF="registry.htm#M11" NAME="L956">SUPPORTED TYPES</A>
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<DL>
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<DD><A HREF="registry.htm#M12" NAME="L957"><B>binary</B></A>
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<DD><A HREF="registry.htm#M13" NAME="L958"><B>none</B></A>
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<DD><A HREF="registry.htm#M14" NAME="L959"><B>sz</B></A>
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<DD><A HREF="registry.htm#M15" NAME="L960"><B>expand_sz</B></A>
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<DD><A HREF="registry.htm#M16" NAME="L961"><B>dword</B></A>
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<DD><A HREF="registry.htm#M17" NAME="L962"><B>dword_big_endian</B></A>
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<DD><A HREF="registry.htm#M18" NAME="L963"><B>link</B></A>
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<DD><A HREF="registry.htm#M19" NAME="L964"><B>multi_sz</B></A>
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<DD><A HREF="registry.htm#M20" NAME="L965"><B>resource_list</B></A>
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</DL>
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<DD><A HREF="registry.htm#M21" NAME="L966">PORTABILITY ISSUES</A>
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<DD><A HREF="registry.htm#M22" NAME="L967">KEYWORDS</A>
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</DL><HR>
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<H3><A NAME="M2">NAME</A></H3>
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registry - Manipulate the Windows registry
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<H3><A NAME="M3">SYNOPSIS</A></H3>
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<B>package require registry 1.0</B><BR>
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<B>registry </B><I>option</I> <I>keyName</I> ?<I>arg arg ...</I>?<BR>
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<H3><A NAME="M4">DESCRIPTION</A></H3>
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The <B>registry</B> package provides a general set of operations for
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manipulating the Windows registry. The package implements the
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<B>registry</B> Tcl command. This command is only supported on the
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Windows platform. Warning: this command should be used with caution
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as a corrupted registry can leave your system in an unusable state.
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<P>
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<I>KeyName</I> is the name of a registry key. Registry keys must be
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one of the following forms:
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<DL><P><DD>
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<B>\\</B><I>hostname</I><B>\</B><I>rootname</I><B>\</B><I>keypath</I>
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<P>
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<I>rootname</I><B>\</B><I>keypath</I>
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<P>
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<I>rootname</I>
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</DL>
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<P>
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<I>Hostname</I> specifies the name of any valid Windows
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host that exports its registry. The <I>rootname</I> component must be
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one of <B>HKEY_LOCAL_MACHINE</B>, <B>HKEY_USERS</B>,
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<B>HKEY_CLASSES_ROOT</B>, <B>HKEY_CURRENT_USER</B>,
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<B>HKEY_CURRENT_CONFIG</B>, <B>HKEY_PERFORMANCE_DATA</B>, or
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<B>HKEY_DYN_DATA</B>. The <I>keypath</I> can be one or more
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registry key names separated by backslash (<B>\</B>) characters.
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<P>
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<I>Option</I> indicates what to do with the registry key name. Any
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unique abbreviation for <I>option</I> is acceptable. The valid options
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are:
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<P>
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<DL>
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<P><DT><A NAME="M5"><B>registry delete </B><I>keyName</I> ?<I>valueName</I>?</A><DD>
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If the optional <I>valueName</I> argument is present, the specified
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value under <I>keyName</I> will be deleted from the registry. If the
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optional <I>valueName</I> is omitted, the specified key and any subkeys
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or values beneath it in the registry heirarchy will be deleted. If
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the key could not be deleted then an error is generated. If the key
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did not exist, the command has no effect.
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<P><DT><A NAME="M6"><B>registry get </B><I>keyName valueName</I></A><DD>
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Returns the data associated with the value <I>valueName</I> under the key
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<I>keyName</I>. If either the key or the value does not exist, then an
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error is generated. For more details on the format of the returned
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data, see SUPPORTED TYPES, below.
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<P><DT><A NAME="M7"><B>registry keys </B><I>keyName</I> ?<I>pattern</I>?</A><DD>
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If <I>pattern</I> isn't specified, returns a list of names of all the
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subkeys of <I>keyName</I>. If <I>pattern</I> is specified, only those
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names matching <I>pattern</I> are returned. Matching is determined
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using the same rules as for <B><A HREF="../TkCmd/string.htm">string</A></B> <B>match</B>. If the
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specified <I>keyName</I> does not exist, then an error is generated.
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<P><DT><A NAME="M8"><B>registry set </B><I>keyName</I> ?<I>valueName data </I>?<I>type</I>??</A><DD>
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If <I>valueName</I> isn't specified, creates the key <I>keyName</I> if
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it doesn't already exist. If <I>valueName</I> is specified, creates
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the key <I>keyName</I> and value <I>valueName</I> if necessary. The
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contents of <I>valueName</I> are set to <I>data</I> with the type
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indicated by <I>type</I>. If <I>type</I> isn't specified, the type
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<B>sz</B> is assumed. For more details on the data and type arguments,
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see SUPPORTED TYPES below.
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<P><DT><A NAME="M9"><B>registry type </B><I>keyName valueName</I></A><DD>
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Returns the type of the value <I>valueName</I> in the key
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<I>keyName</I>. For more information on the possible types, see
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SUPPORTED TYPES, below.
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<P><DT><A NAME="M10"><B>registry values </B><I>keyName</I> ?<I>pattern</I>?</A><DD>
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If <I>pattern</I> isn't specified, returns a list of names of all the
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values of <I>keyName</I>. If <I>pattern</I> is specified, only those
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names matching <I>pattern</I> are returned. Matching is determined
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using the same rules as for <B><A HREF="../TkCmd/string.htm">string</A></B> <B>match</B>.
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<P></DL>
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<H3><A NAME="M11">SUPPORTED TYPES</A></H3>
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Each value under a key in the registry contains some data of a
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particular type in a type-specific representation. The <B>registry</B>
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command converts between this internal representation and one that can
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be manipulated by Tcl scripts. In most cases, the data is simply
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returned as a Tcl string. The type indicates the intended use for the
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data, but does not actually change the representation. For some
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types, the <B>registry</B> command returns the data in a different form to
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make it easier to manipulate. The following types are recognized by the
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registry command:
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<P>
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<DL>
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<P><DT><A NAME="M12"><B>binary</B></A><DD>
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The registry value contains arbitrary binary data. The data is represented
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exactly in Tcl, including any embedded nulls.
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<P><DT><A NAME="M13"><B>none</B></A><DD>
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The registry value contains arbitrary binary data with no defined
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type. The data is represented exactly in Tcl, including any embedded
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nulls.
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<P><DT><A NAME="M14"><B>sz</B></A><DD>
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The registry value contains a null-terminated string. The data is
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represented in Tcl as a string.
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<P><DT><A NAME="M15"><B>expand_sz</B></A><DD>
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The registry value contains a null-terminated string that contains
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unexpanded references to environment variables in the normal Windows
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style (for example, "%PATH%"). The data is represented in Tcl as a
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string.
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<P><DT><A NAME="M16"><B>dword</B></A><DD>
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The registry value contains a little-endian 32-bit number. The data is
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represented in Tcl as a decimal string.
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<P><DT><A NAME="M17"><B>dword_big_endian</B></A><DD>
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The registry value contains a big-endian 32-bit number. The data is
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represented in Tcl as a decimal string.
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<P><DT><A NAME="M18"><B>link</B></A><DD>
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The registry value contains a symbolic link. The data is represented
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exactly in Tcl, including any embedded nulls.
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<P><DT><A NAME="M19"><B>multi_sz</B></A><DD>
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The registry value contains an array of null-terminated strings. The
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data is represented in Tcl as a list of strings.
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<P><DT><A NAME="M20"><B>resource_list</B></A><DD>
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The registry value contains a device-driver resource list. The data
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is represented exactly in Tcl, including any embedded nulls.
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<P></DL>
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<P>
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In addition to the symbolically named types listed above, unknown
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types are identified using a 32-bit integer that corresponds to the
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type code returned by the system interfaces. In this case, the data
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is represented exactly in Tcl, including any embedded nulls.
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<H3><A NAME="M21">PORTABILITY ISSUES</A></H3>
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The registry command is only available on Windows.
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<H3><A NAME="M22">KEYWORDS</A></H3>
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<A href="../Keywords/R.htm#registry">registry</A>
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<HR><PRE>
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<A HREF="../copyright.htm">Copyright</A> © 1997 Sun Microsystems, Inc.
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<A HREF="../copyright.htm">Copyright</A> © 1995-1997 Roger E. Critchlow Jr.</PRE>
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</BODY></HTML>
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