Microsoft Schedule Plus (or Microsoft Schedule+) was a time management software product developed by Microsoft, but was discontinued as part of Microsoft Office when most of its functionality was incorporated into Outlook 97. It was originally intended as a companion to Microsoft Mail, but later it was a companion to Microsoft Exchange and was part of Microsoft Office 95, and later Microsoft Exchange Client and Windows Messaging, so it was later included and developed as part of Microsoft Exchange Server, which resulted in version 7.5 of Schedule+ as part of Exchange Server 5.0. The "Outlook Calendar" that was part of Outlook for Windows 3.1 and Macintosh versions before 9.0 was actually a new version of Schedule+. In spite of being discontinued, the software, however, is still included with all versions of Microsoft Office up to Microsoft Office 2003, although it is just to support conversion from Schedule+ 1.x. It is not available in Office 2007, although it was present in early test builds.
1995: Schedule+ 7 for Windows 95 (Office 95) and Mac
1996: Schedule+ 7.5 (Office 97 and higher)
Note: There are no Schedule+ 2.0 to 6.0, because the Windows 95 version was launched with Word 7. All the Office 95 products have OLE 2 capacity — moving data automatically from various programs — and Schedule+ 7 should show that it was contemporary with Word 7.