Windows 2000:
In Windows 2000, you can locate Scanpst.exe on the CD:
<CD drive>:\Program Files\Common Files\System\Mapi\1033\NT\Scanpst.exe
Alternatively:
C:\Documents and Settings\<username>\Local Settings\Application Data\Microsoft\Outlook\Scanpst.exe

Windows XP
If you have Microsoft Office installed:
C:\Program Files\Microsoft Office\Office12\Scanpst.exe
C:\Program Files (x86)\Microsoft Office\Office12\Scanpst.exe
If you don’t have Microsoft Office installed, try here:
C:\Program Files\Common Files\System\MSMAPI\1033\Scanpst.exe
Alternatively:
C:\Documents and Settings\<username>\Local Settings\Application Data\Microsoft\Outlook\Scanpst.exe

Windows Vista
C;:\Users\<username>\AppData\Local\Microsoft\Outlook\Scanpst.exe
Alternatively, if you have Microsoft Office:
C:\Program Files\Microsoft Office\Office12\Scanpst.exe
C:\Program Files (x86)\Microsoft Office\Office12\Scanpst.exe
Alternatively:
C:\Programme\Common Files\System\MSMAPI\1031\Scanpst.exe

Internet Download
If you still can’t find the Inbox Repair Tool, you can download it from here (http://www.emailaddressmanager.com/outlook/Scanpst.exe) then copy it to one of the above folders so it can easily be found again.