Active Directory Telephone Book


Active Directory Telephone Book, or ADTB in short is a small and smart windows forms program that allows you to quickly find persons within your organization. Perform phonetic searches, or find people based on their location, department or telephone number. Help the people in your organization find each other! When ADTB is started for the first time it scans your active directory for telephone numbers, names, email addresses, etc. Depending on the size of your organization’s active directory this can take up to a few minutes. These results are packed and encrypted into the user’s ‘application data’. This means, the second time the user launches ADTB it starts up very quickly.

*Used in free mode ADTB has two limitations: some times a dialog box will appear and you cannot customize the title bar.


  • Reads directly from Active Directory
  • Allows users to edit their own information (admin controlled)
  • No need to maintain a separate telephone book
  • Lightning fast searches
  • Find as you type, once your search is unique you can stop typing
  • No webserver required
  • Phonetic matches (when searching for ‘Jon, ‘John’ is also suggested)
  • Cached data, quick start up time
  • Perfect for company laptops (which are not always on the network)
  • Smart export features (clipboard,CSV)
  • Multi language; English, French, German, Dutch, Spanish, Japanese and Portuguese
  • Quickly send a mail using standard mail client like Outlook or Outlook Express
  • Drag and drop support
  • Supports multiple domains in your forest/trusts

Admin features;

  • Custamizable, you name the labels and the matching AD properties
  • Easy to deploy
  • Configuration is encrypted
  • Low memory usage
  • Application is ‘portable’ by design, no installation required
  • Can be run from a network share
  • Exclude OU’s you don’t want to appear
  • Reliable and honest, 100% spam/toolbar/spyware/virus free

System requirements

  • A client in a Microsoft Active Directory domain with .NET framework 2.0 or higher
  • A Microsoft Active Directory Domain

Tested on;

  • Windows XP 32/64
  • Windows Vista 32/64
  • Windows 7 32/34
  • Windows 8 + 8.1
  • Windows server 2000,2003,2008,2012 32/64
  • Active directory with 30.000 user objects
  • Cache side indication; 500kb for 5000 user object (based on standard configuration)