TwInbox is a free add-in for Microsoft Outlook 2007 for using Twitter directly from Outlook. This outlook add-in can be download from here. After downloading the setup, execute the TwInbox_setup.exe file to start the installation
Click on Next button to continue with the installation.
Accept License Agreement.
Then specify the installation directory
And you might receive the below error if Outlook is still running while installing this setup.
Click on the finish button.
To configure TwInbox, click on the options menu under the TwInbox menu list
In the Account tab, enter User Name and Twitter Password your twitter account.
And in Receiving tab, specify where you want to receive your new Twitter messages, by default it will be your Inbox.
Now click ok and start receiving Twitter messages.
If you would like to filter the message based on any keyword, then you can specify this using the Search/Track/Group option. And using the Managing Searches and Groups the new keyword can be entered. This check Twitter messages for this search term.