| BlackBerry smartphones Tour, Storm, Bold, Curve, Pearl, Pearl Flip, 8800 series, 7100 series |
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| Windows Mobile Smartphoneswith Windows Mobile 6.1, 6 Standard or Windows Mobile 5 for smartphone and without a touch screen |
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| Pocket PCswith Windows Mobile 6.1, 6 Professional or Windows Mobile 5 for Pocket PC Phone Edition and a touchscreen |
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| Palm Treo Smartphoneswith Windows Mobile 6.1, 6 Professional or Windows Mobile 5 for Pocket PC Phone Edition and a touchscreen |
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Handheld Contact works with all wireless carriers.
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| Microsoft Outlook 2007 |
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| Microsoft Outlook 2003 |
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| Microsoft Outlook 2002 |
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| Microsoft Outlook Express |
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| Windows 7 |
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| Windows Vista |
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| Windows XP Professional |
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| Windows XP Media Center Edition |
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| Windows 2008 Server |
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| Windows 2003 Server |
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| Windows 2000 Professional |
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| Windows 2000 Server |
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| Windows XP Home |
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