Supported platforms for lync web app for lync 2010

To use Microsoft Lync Web App communications software, you must have one of the following supported operating system and Internet browser combinations.

Notes: 

• You also must have the Microsoft Silverlight 4 GDR 0 (Build: 4.0.50524) browser plug-in, or a later version of Silverlight, installed on your computer.

• Lync Web App is not supported on 64-bit browsers.

• Lync Web App is not supported on 32-bit Safari 4.x browsers, except for Macintosh OS 10.4.8 and later versions (Intel-based).

• Lync Web App requires support for NPAPI in the browser. Firefox removed support for NPAPI in version 52.0, so Firefox is no longer supported in its current version.

Operating system	Internet Explorer 9 (32 bit)	Internet Explorer 8 (32 bit)	Internet Explorer 7 (32 bit)	Internet Explorer 6 (32 bit)	Firefox 3.x or later (32 bit)	Safari 5.x (32 bit)
Windows 7 (32-bit and 64-bit)	Supported	Supported	Supported	Not supported	Not supported	Not supported
Windows Vista with Service Pack 2 (32-bit and 64-bit)	Supported	Supported	Supported	Not supported	Not supported	Not supported
Windows XP with Service Pack 3 (32-bit)	Not supported	Supported	Supported	Supported	Not supported	Not supported
Windows XP with Service Pack 2 (64-bit)	Not supported	Supported	Supported	Supported	Not supported	Not supported
Windows Server 2008 R2	Supported	Supported	Supported	Not supported	Not supported	Not supported
Windows Server 2008 Service Pack 2	Supported	Supported	Supported	Not supported	Not supported	Not supported
Windows Server 2003 (except on Intel Architecture 64-bit [IA-64])	Not supported	Supported	Supported	Supported	Not supported	Not supported
Windows Server 2000 Service Pack 4	Not supported	Not supported	Not supported	Supported	Not supported	Not supported
Macintosh OS 10.4.8 and later versions (Intel-based)	Not supported	Not supported	Not supported	Not supported	Not supported	Supported