Microsoft Exchange has an interesting history. It is part of the server products offered by Microsoft Servers and many companies use it. The most popular features include e-mail, contacts, calendar, tasks, and support. Data storage is also offered.

The history of Microsoft Exchange is quite interesting and began in 1993 when the XENIX system was changed to the Exchange Server. Not quite two years later approximately 500 companies were using the Exchange Server Beta 1. A year later the amount of users had grown exponentially to 32,000. In 1996, the public was first able to buy the original Exchange Server 4.0. It was offered as a Microsoft Mail 3.5 upgrade. However, it was very different and offered many services. The Exchange Server offer a mail system with a database store offering X 500 directory serves. The directory that was used became the Active Directory Service, which Windows 2000 integrated as its foundation for Windows Server domains.

The next edition was released in 1997. This w