Microsoft had released the System Requirements for Dynamics GP 2013, that includes GP Web Client requirements as well. The system requirements page can be found here: System Requirements for Microsoft Dynamics GP 2013.

While I leave it to you to get informed about entire details, it’s worth to brief you about what are NOT supported:

1. Windows XP all editions
2. Windows Server 2003 all editions
3. Internet Explorer 7.0
4. Microsoft Office 2007
5. Microsoft SQL Server 2005 all editions
6. Windows SharePoint Services 3.0
7. Microsoft Office SharePoint Server 2007
8. Office Communicator 2007

So start planning for the future of GP.

VAIDY