Outlook 2K error

What is a 1706 error , Is it a outlook 2K error or a windows installer error. How do you fix it…
Summary: User has an Assest$ workstation Windows 4.0 and is unable to access Outlook 2000.
Clicks on the Outlook icon and receives the below errormessage:
Error Message :1706 no valid source could be found- the windows installer cannot continue.