Outlook – The message interface has returned an unknown error

When saving an email message to a network drive, I get the following error;

“The message interface has returned an unknown error.”

Instead of saving the message, a tmp-file is created on the network location. When I rename the tmp-file to .msg, then it appears to be the message that I tried to save.

How […]

Import NK2 files into Outlook 2010 suggested contacts

Outlook 2010 does not use an NK2 file anymore to store suggested contacts instead it uses a file called Stream_Autocomplete.dat located in C:\Users\%username%\AppData\Local\Microsoft\Outlook\RoamCache, this means you can’t copy the NK2 file from one machine to another when upgrading.

What you need to do now is import the NK2 file into suggested contacts to do this […]