Time Matters 13 Third Party Software Requirements
While Time Matters still works on Windows XP computers, the Windows XP operating is far less secure than Windows 7 and Windows 8 now. As of April 8, 2014, Microsoft security updates for Windows XP will no longer be released.
If you are still using Windows XP, you cannot install Word 2013, Excel 2013 and other Office 2013 applications.
Word and Outlook 2003 are no longer supported for Time Matters version after 11.