313 lines
14 KiB
HTML
313 lines
14 KiB
HTML
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<title>WMI SDK Sample - ObjPathParser</title>
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<tr>
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<td width=160 style='width:120.0pt;background:#330099;padding:.75pt .75pt .75pt .75pt'>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:Verdana;
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color:white'> <nobr><b>Windows Management Instrumentation SDK Sample</b></span>
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<o:p></o:p></p>
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</td>
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</tr>
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</table>
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<p class=MsoPlainText><br>
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<strong><span style='font-size:13.5pt;font-family:Verdana'>ObjPathParser</span></strong><br
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style='mso-special-character:line-break'>
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<![if !supportLineBreakNewLine]><br style='mso-special-character:line-break'>
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<![endif]></p>
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<p class=MsoPlainText><span style='font-family:Verdana'>The ObjPathParser
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sample contains code which parses CIM-style object paths.<span
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style="mso-spacerun: yes"><EFBFBD> </span>Its primary use is in building providers,
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when implementing GetObjectAsync().<span style="mso-spacerun: yes"><EFBFBD> </span>However,
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it is generally useful when working with WMI in a variety of contexts.<o:p></o:p></span></p>
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<p class=MsoPlainText><span style='font-family:Verdana'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
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<p class=MsoPlainText><span style='font-family:Verdana'>The primary
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illustration is in PATHTEST.CPP.<span style="mso-spacerun: yes"><EFBFBD> </span>The
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main() function contains a complete example of how to parse an object path
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using the C++ class CObjectPathParser.<span style="mso-spacerun: yes"><EFBFBD>
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</span>The code of interest is:<o:p></o:p></span></p>
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<p class=MsoPlainText><span style='font-family:Verdana'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
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<p class=MsoPlainText style='margin-left:.5in'><span style='font-family:Verdana'>ParsedObjectPath*
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pOutput = 0;<o:p></o:p></span></p>
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<p class=MsoPlainText style='margin-left:.5in'><span style='font-family:Verdana'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
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<p class=MsoPlainText style='margin-left:.5in'><span style='font-family:Verdana'>wchar_t
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*pPath = L"\\\\.\\root\\default:MyClass=\"keyval\"";<o:p></o:p></span></p>
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<p class=MsoPlainText style='margin-left:.5in'><span style='font-family:Verdana'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
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<p class=MsoPlainText style='margin-left:.5in'><span style='font-family:Verdana'>CObjectPathParser
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p;<o:p></o:p></span></p>
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<p class=MsoPlainText style='margin-left:.5in'><span style='font-family:Verdana'>int
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nStatus = p.Parse(pPath,<span style="mso-spacerun: yes"><EFBFBD> </span>&pOutput);<o:p></o:p></span></p>
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<p class=MsoPlainText style='margin-left:.5in'><span style='font-family:Verdana'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
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<p class=MsoPlainText style='margin-left:.5in'><span style='font-family:Verdana'>printf("Return
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code is %d\n", nStatus);<o:p></o:p></span></p>
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<p class=MsoPlainText style='margin-left:.5in'><span style='font-family:Verdana'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
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<p class=MsoPlainText style='margin-left:.5in'><span style='font-family:Verdana'>if
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(nStatus != 0)<o:p></o:p></span></p>
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<p class=MsoPlainText style='margin-left:.5in'><span style='font-family:Verdana'><span
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style="mso-spacerun: yes"><EFBFBD><EFBFBD><EFBFBD> </span>return;<o:p></o:p></span></p>
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<p class=MsoPlainText><span style='font-family:Verdana'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
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<p class=MsoPlainText><span style='font-family:Verdana'>The rest of the code
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simply dumps the parsed output.<o:p></o:p></span></p>
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<p class=MsoPlainText><span style='font-family:Verdana'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
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<p class=MsoPlainText><span style='font-family:Verdana'>The other files in the
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project contain the sources for the lexer and the parser.<span
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style="mso-spacerun: yes"><EFBFBD> </span>These files require no other supporting
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files, and are not dependent on flex, yacc, or other similar tools.<span
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style="mso-spacerun: yes"><EFBFBD> </span>The code is self-contained.<o:p></o:p></span></p>
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<p class=MsoPlainText><![if !supportEmptyParas]> <![endif]><o:p></o:p></p>
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<p class=MsoPlainText><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;
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font-family:Verdana'>Building the ObjPathParser Sample<o:p></o:p></span></p>
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<p class=MsoPlainText> </p>
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<p class=MsoPlainText><span style='font-family:Verdana'>The sample can be built
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from the command line using NMAKE, or it can be built using Microsoft Visual
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C++.<span yes> </span><o:p></o:p></span></p>
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<p class=MsoPlainText><span style='font-family:Verdana'> <o:p></o:p></span></p>
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<p class=MsoPlainText><span style='font-family:Verdana'>From the command line
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in the sample installation directory, type the following: <o:p></o:p></span></p>
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<p class=MsoPlainText><span style='font-family:Verdana'> <o:p></o:p></span></p>
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<p class=MsoPlainText style='margin-left:.25in'><b><span style='font-family:
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Verdana'>NMAKE /f "Makefile"<o:p></o:p></span></b></p>
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<p class=MsoPlainText><span style='font-family:Verdana'> <o:p></o:p></span></p>
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<p class=MsoPlainText><span style='font-family:Verdana'>From Microsoft Visual
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C++: <o:p></o:p></span></p>
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<p class=MsoPlainText><span style='font-family:Verdana'> <o:p></o:p></span></p>
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<p class=MsoPlainText .5in list lfo2 level1 l0><span style='font-family:Verdana'>1.<span
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Roman New Times></span></span><span style='font-size:7.0pt;font-family:Verdana'>
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</span><span style='font-family:Verdana'>Select File + Open Workspace<o:p></o:p></span></p>
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<p class=MsoPlainText .5in list lfo2 level1 l0><span style='font-family:Verdana'>2.<span
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Roman New Times></span></span><span style='font-size:7.0pt;font-family:Verdana'>
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</span><span style='font-family:Verdana'>Select the ObjPathParser.dsp file<o:p></o:p></span></p>
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<p class=MsoPlainText><![if !supportEmptyParas]> <![endif]><o:p></o:p></p>
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<p class=MsoNormal style='tab-stops:list .5in'><strong><span style='font-family:
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Verdana;font-weight:normal'>General Notes<o:p></o:p></span></strong></p>
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<p class=MsoNormal style='tab-stops:list .5in'><strong><span style='font-family:
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Verdana;font-weight:normal'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></strong></p>
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<p class=MsoPlainText style='tab-stops:list .5in'><span style='font-family:
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Verdana;mso-fareast-font-family:"MS Mincho";mso-bidi-font-family:"Times New Roman"'>Things
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to remember when you're building your own WMI provider:<o:p></o:p></span></p>
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<p class=MsoPlainText style='tab-stops:list .5in'><span style='font-family:
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Verdana;mso-fareast-font-family:"MS Mincho";mso-bidi-font-family:"Times New Roman"'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
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<p class=MsoPlainText style='margin-left:.25in;text-indent:-.25in;mso-list:
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l0 level1 lfo2;tab-stops:list .25in .5in'><![if !supportLists]><span
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style='font-family:"Times New Roman";mso-fareast-font-family:"MS Mincho"'>1.<span
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style='font:7.0pt "Times New Roman"'>
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</span></span><![endif]><span style='font-family:Verdana;mso-fareast-font-family:
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"MS Mincho";mso-bidi-font-family:"Times New Roman"'>WMI interfaces are defined
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in wbemcli.h and wbemprov.h found in the wmi\include directory.<span
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style="mso-spacerun: yes"><EFBFBD> </span>You may #include both these files by
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including just wbemidl.h located in the same directory.<o:p></o:p></span></p>
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<p class=MsoPlainText style='tab-stops:list .5in'><span style='font-family:
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Verdana;mso-fareast-font-family:"MS Mincho";mso-bidi-font-family:"Times New Roman"'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
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<p class=MsoPlainText style='margin-left:.25in;text-indent:-.25in;mso-list:
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l0 level1 lfo2;tab-stops:list .25in .5in'><![if !supportLists]><span
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style='font-family:"Times New Roman";mso-fareast-font-family:"MS Mincho"'>2.<span
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style='font:7.0pt "Times New Roman"'>
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</span></span><![endif]><span style='font-family:Verdana;mso-fareast-font-family:
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"MS Mincho";mso-bidi-font-family:"Times New Roman"'>WMI interface CLSIDs are
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defined in wbemuuid.lib. If you get unresolved externals in interfaces and
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CLSIDs, this is what is missing. <o:p></o:p></span></p>
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<p class=MsoPlainText style='tab-stops:list .5in'><span style='font-family:
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Verdana;mso-fareast-font-family:"MS Mincho";mso-bidi-font-family:"Times New Roman"'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
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<p class=MsoPlainText style='margin-left:.25in;text-indent:-.25in;mso-list:
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l0 level1 lfo2;tab-stops:list .25in .5in'><![if !supportLists]><span
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style='font-family:"Times New Roman";mso-fareast-font-family:"MS Mincho"'>3.<span
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style='font:7.0pt "Times New Roman"'>
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</span></span><![endif]><span style='font-family:Verdana;mso-fareast-font-family:
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"MS Mincho";mso-bidi-font-family:"Times New Roman"'>You'll need to link with
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oleaut32.lib and ole32.lib to get the needed COM support.<o:p></o:p></span></p>
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<p class=MsoPlainText style='tab-stops:list .5in'><span style='font-family:
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Verdana;mso-fareast-font-family:"MS Mincho";mso-bidi-font-family:"Times New Roman"'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
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<p class=MsoPlainText style='margin-left:.25in;text-indent:-.25in;mso-list:
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l0 level1 lfo2;tab-stops:list .25in .5in'><![if !supportLists]><span
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style='font-family:"Times New Roman";mso-fareast-font-family:"MS Mincho"'>4.<span
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style='font:7.0pt "Times New Roman"'>
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</span></span><![endif]><span style='font-family:Verdana;mso-fareast-font-family:
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"MS Mincho";mso-bidi-font-family:"Times New Roman"'>In the Link|Output
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settings, specify 'wWinMainCRTStartup' as the entry point. This is per the
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Unicode programming instructions.<o:p></o:p></span></p>
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<p class=MsoPlainText style='tab-stops:list .5in'><span style='font-family:
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Verdana;mso-fareast-font-family:"MS Mincho";mso-bidi-font-family:"Times New Roman"'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></p>
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<p class=MsoPlainText style='margin-left:.25in;text-indent:-.25in;mso-list:
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l0 level1 lfo2;tab-stops:list .25in .5in'><![if !supportLists]><span
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style='font-family:"Times New Roman";mso-fareast-font-family:"MS Mincho"'>5.<span
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style='font:7.0pt "Times New Roman"'>
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</span></span><![endif]><span style='font-family:Verdana;mso-fareast-font-family:
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"MS Mincho"'>If you're using the makefiles, don't forget to set the Visual C++
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environment variables. This is done by running VCVARS32.BAT.<o:p></o:p></span></p>
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<p class=MsoNormal style='tab-stops:list .5in'><br>
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<span style='font-family:Arial'><a
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href="http://www.microsoft.com/misc/CPYRIGHT.HTM"><b><EFBFBD> 1998-1999 Microsoft
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Corporation. All rights reserved.</b></a></span></p>
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</div>
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</body>
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</html>
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