Installation Problems

[Thomas P Laford]

Hello,

1) I just downloaded poi-bin-3.6-20091214.zip to my Windows XP PC.

2) I unzipped the file into C:\Program Files\Java\ so there is now a 
poi-3.6 folder

3) I added the following two entries to my CLASSPATH:
        C:\Program Files\Java\poi-3.6\poi-ooxml-3.6-20091214.jar
        C:\Program Files\Java\poi-3.6\poi-ooxml-schemas-3.6-20091214.jar

4) I rebooted my PC

5) Here is my code snippet:

        import org.apache.poi.xssf.usermodel.*;
...
        try
        {
            XSSFWorkbook wb = new XSSFWorkbook("C:\\MyWorksheet.xlsm");
            XSSFSheet s1 = wb.getSheet("Sheet1");
            XSSFSheet s2 = wb.getSheet("Sheet2");

            JOptionPane.showMessageDialog(
                this, "PhysicalNumberOfRows = " + 
s1.getPhysicalNumberOfRows());

            JOptionPane.showMessageDialog(
                this, "LastRowNum = " + s1.getLastRowNum());

            JOptionPane.showMessageDialog(
                this, "PhysicalNumberOfRows = " + 
s2.getPhysicalNumberOfRows());

            JOptionPane.showMessageDialog(
                this, "LastRowNum = " + s2.getLastRowNum());
        }
        catch (Throwable e)
        {
            JOptionPane.showMessageDialog(
                null, e.toString(), "Read Error", 
JOptionPane.ERROR_MESSAGE);
        }

6) When I compile with the command javac MyApp.java I don't get any 
errors.

7) When I run my applet using IE (version 6) the following exception is 
caught:
        java.lang.NoClassDefFoundError: 
org/apache/poi/xssf/usermodel/XSSFWorkbook

What have I forgotten to do to get apache poi working on my PC?
Thomas