Here are some key points I took from one of the posts, the most important of which is POINT 3.
- Outlook must be installed on the computer that the .pst file is to be exported.
- Individual messages from Outlook (.msg) cannot be dragged and dropped into WIndows Mail (or even Outlook Express on XP for that matter)
- In Outlook on Windows XP export the PST to Outlook Express then import those into Windows Mail
- Outlook Contacts will need to be exported as a Comma Separated Values text file for import into Windows Contacts
Microsoft, Outlook, PST, Windows Mail, Tips and Tricks, Import PST
Source:? Views on Windows Vista