Scanpst.exe is an inbuilt utility used to repair the corrupt or damaged PST file of MS Outlook. This utility is also know as Inbox Repair Tool. You will find Scanpst.exe on your PC in these locations -
Outlook 2010
32-bit Windows - C:\Program Files\Microsoft Office\Office14
64-bit Windows - C:\Program Files (x86)\Microsoft Office\Office14
64-bit Outlook - C:\Program Files\Microsoft Office\Office14
Outlook 2007
32-bit Windows - C:\Program Files\Microsoft Office\Office12
64-bit Windows - C:\Program Files (x86)\Microsoft Office\Office12
Outlook 2003
32-bit Windows - C:\Program Files\Common Files\System\MSMAPI\<locale ID>\scanpst.exe
64-bit Windows - C:\Program Files (x86)\Common Files\System\MSMAPI\<locale ID>\scanpst.exe
