Supported Operating Systems for Communicator Web Access
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 software must be installed on the computer on which you will be installing Communicator Web Access:
Windows Server 2003 R2 or Windows Server 2003 SP1
Windows Installer 3 (included in Windows Server 2003 SP1)
IIS 6.0
.NET Framework 2.0, including ASP.NET 2.0
Note
ASP.NET is automatically registered with IIS if the .NET Framework 2.0 is installed after IIS 6.0 is installed. If you install the .NET Framework first, you must manually register ASP.NET. For details, see https://r.office.microsoft.com/r/rlidOCS?clid=1033&p1=kb325093.
In addition, the following updates must be installed:
Microsoft Knowledge Base article 913297, "FIX: Error message when you try to run a Web application that was built by using the .NET Framework 2.0: 'Overwhelming changes have occurred'," at https://r.office.microsoft.com/r/rlidOCS?clid=1033&p1=kb913297.
Microsoft Knowledge Base article 917283, "MS06-033: A vulnerability in ASP.NET could allow information disclosure," at https://r.office.microsoft.com/r/rlidOCS?clid=1033&p1=kb917283.
Microsoft Knowledge Base article 922770, "MS06-056: Vulnerability in ASP.NET 2.0 could allow for information disclosure," at https://r.office.microsoft.com/r/rlidOCS?clid=1033&p1=kb922770.