Environment Variable PATH Statement

After installing a program called "Invest One" on a Windows 2000 machine I can no longer go to a command prompt and type for example 'ipconfig'.  I get error message 'ipconfig' is not recognized as an internal or external command.  I have to navigate to c:\winnt\system32 to run it.  This problem started directly after I installed the program and restarted my pc.  The PATH in Environment variables is:

C:\Program Files\Seagate Software\Open OLAP\Support;%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;C:\Program Files\Microsoft SQL Server\80\Tools\BINN;C:\Program Files\Personal Communications;C:\PROGRA~1\CA\SHARED~1\SCANEN~1;C:\PROGRA~1\CA\ETRUST~1;U:\CUISPECTRA

Any ideas?
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Can you reboot and boot with last known good configuration?
How to start your computer by using the Last Known Good Configuration feature

I'm not sure that enivornment variables are supported in the Path statement; I know I've never seen them used.  Try replacing the %Systemroot% variable with C:\winnt.   You can do this by:

Right click My Computer
Select Properties
Click the Advanced tab
Click the Environment Variables button
Find the Path statement in the System variables section and click it
Click Edit

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Windows 2000

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