If you're like me, you've probably come to rely on Outlook's address auto-complete feature as a pseudo contact book. You start typing the name, or part of the email address, and Outlook matches your text to a previous entry.
Auto-Complete Contacts are Only Stored Locally, Watch Out!
Unfortunately the auto-complete function is only available on the PC that has Outlook. Even worse, the cache file that stores those thousands of accumulated contacts is stored locally on your machine - which means if anything happens to your computer, you may not be able to recover that data.
Secondly, the contacts stored in your auto-complete are inaccessible via remote access - either through the webmail login or using your synched mobile device.
Store Auto-complete Contacts in Exchange for Safety and Accessibility
A solution is to extract that data and merge it into your Outlook contacts making it accessible remotely, stored server-side and properly indexed by contact name.
Outlook hides this data in a little-known cache file that's not immediately accessible. Fortunately, you can use a smart litle program called debunk2 to locate the data, and export it to a CSV file. You can then import that CSV in to your Contacts using Outlook's import function. Let me know if you find this tip helpful!
Image and another helpful article from windows-help-central.com