Both products had been expected later this year.
The 2007 Microsoft Office package, which includes the Word processor, Excel spreadsheet, and PowerPoint presentation software, will be made available to business customers in October 2006, the world biggest software maker said.
Earlier this week, Microsoft delayed the consumer launch of its much-anticipated Windows Vista software until January 2007 from an earlier target of the second half of 2006 and pledged to ship the next version of its operating system to business customers in November.
Vista is the first major overhaul of Windows since Microsoft rolled out Windows XP nearly five years ago. The company's last major update to Office came in 2003.
The successful roll-out of the new products are vital to Microsoft re-establishing itself as a company with robust growth potential and kick-starting its stock, which has been mostly stagnant for the last five years.
Microsoft shares fell 21 cents to $26.64 Friday on Nasdaq.