SmarterTools Inc.
24
Freeware
SmarterMail Sync for Outlook 2003 delivers Exchange-level email server software.
22
Google
4,620
Freeware
It is a useful calendar with many customizable features and a nice interface.
4
PPP Infotech Ltd.
44
Shareware
A program to sync Outlook Calendar appointments with Google Calendar events.
2
Ankesh Dave & Akanksha Gaur
42
Open source
Calendar Sync + synchronizes Outlook calendar entries to a Google calendar.
4
Microsoft Corporation
106
Freeware
Provides the latest updates to Outlook 2003 with Business Contact Manager.
Individual Software, Inc.
53
Commercial
Provides you with the guides and tutorials to help you learn Outlook 2003.
99
Veign
71
Freeware
A tool to let you decide which Outlook-blocked attachments are safe to open.
10
Google, Inc.
2,207
Freeware
Use Microsoft Outlook 2003, 2007, 2010, 2013 and 2016 with G Suite.
Plaxo, Inc.
28
Freeware
It is a nice and easy to manipulate program with many features.
69
SYNCING.NET Technologies GmbH
6
Shareware
SYNCING.NET - Your Recovery Tool for Microsoft Outlook 2000 - 2007.
1
Google, Inc.
8
Freeware
Google Apps Sync for Microsoft Outlook allows you to use Microsoft Outlook 2003.
Totalidea Software New Zealand Ltd.
6
Backup your Outlook 2003 and Outlook 2007 data and settings easily.
SDMD GmbH
25
Freeware
It is a freeware addin for Microsoft Outlook 2003 and Microsoft Outlook 2007.
Demosten
6
Freeware
Synchronizes your Outlook client calendar with your Android calendar.
RemoteCalendars
13
Open source
RemoteCalendars is a COM-.NET Add-in for Outlook 2003/2007, written in C#.
Daniele Tiles,Gabriele
1
Freeware
It's a simple COM-.NET plug-in created for Outlook 2003.
2
BitLaboratory
Attractive Outlook 2003 style navigation bar and header.
Nicolas Sivridis
4
Freeware
Jello Dashboard is a Getting Things Done solution for Microsoft Outlook 2003.
87
OutlookCloud
6
Shareware
It is a small add-in program for Microsoft Outlook 2003, 2007 and 2010.
Codejock Software
1
Commercial
Provides Windows developers with a sophisticated Outlook 2003 style Report.
