Office Communicator 2007 R2

Microsoft Office Communications Server 2007 and Microsoft Office Communications Server 2007 R2 will reach end of support on January 9, 2018. To stay supported, you will need to upgrade. For more information, see Resources to help you upgrade your Office 2007 servers and clients.

The following table contains the minimum hardware and software requirements for Microsoft Office Communicator 2007 R2.

Table 1. Hardware and Software Requirements for Office Communicator 2007 R2

System component Minimum requirement

Display resolution

Required: Super VGA 800x600 for CIF and VGA video calls, 960x600 if HD video calls are enabled.

Recommended: Super VGA 1080x720 or higher.

(Windows XP Tablet PC portrait mode is supported.)

Operating system

Windows 7.

Windows Vista.

Windows XP Professional with Service Pack 2 (SP2).


Data and voice: 500-megahertz (MHz) or higher processor, Intel Pentium-compatible.

For video: Intel Pentium 4; Single Core 1.5 GHz or higher for CIF; Dual Core 1.9 Ghz or higher for VGA; and Quad Core 2.0 Ghz or higher for High Definition.

For the Microsoft RoundTable conferencing device: 1.8 GHz or higher.


512 megabytes (MB) of RAM (1 GB recommended).

Video memory

Video card with 64 MB of RAM (video RAM or VRAM) and Microsoft DirectX application programming interface.


Microphone and speakers, headset with microphone, or equivalent device.

Video source

USB 2.0 video camera or RoundTable device.

Bandwidth requirements

Data: 56 kbps (minimum); 56 kbps (high-quality).

Voice: 50 kbps (minimum); 80 kbps (high-quality).

Video: 50 kbps (minimum); 250 kbps for CIF, 600 kbps for VGA, 1.5 Mbps for High Definition (high-quality).

RoundTable device: 50 kbps (minimum); 250 kbps (high-quality).

The required and recommended bandwidth speeds are cumulative. For example, if you want to use voice, Webcam, and the RoundTable device, the minimum bandwidth would be 50+50+50=150 kbps.


Administrator privileges, or, in Windows Vista Standard User Mode, administrator credentials.

Other requirements

  • Microsoft Core XML services (MSXML) 6.0 SP1 must be installed on your computer before you install Office Communicator 2007 R2.

  • Microsoft Office Outlook 2007 and Microsoft Exchange Server 2007 are required for Outlook integration options.

  • For Office integration to work correctly, you may have to install an update to Outlook 2007. For details about the Outlook update, see Microsoft Knowledge Base article 936864, “Description of the 2007 Office hotfix package” at