All PHP programmers will find this program, called PHP for Outlook, very useful. It is a plug-in to add to MS Outlook that creates a new toolbar. From that bar you can interact directly with the PHP functions that are already predefined.
Mainly, with PHP for Outlook you can commincate, via source code and from the MS Outlook setting, directly with databases or send information to other resources. It also lets you manage the content of emails, putting them into database fields.
To add PHP for Outlook you need MS Office 2000 or later available.