Upgrading Windows SharePoint Services to Office SharePoint Server 2007
If your Microsoft Office Project Server 2007 farm is currently based on Windows SharePoint Services 3.0, you can easily upgrade to Microsoft Office SharePoint Server 2007. For detailed information about how to upgrade, see Upgrade from Windows SharePoint Services 3.0 to Microsoft Office SharePoint Server 2007.
Office SharePoint Server 2007 offers additional functionality that is not available in Windows SharePoint Services 3.0. This includes:
Infopath Forms Services
Business Data Catalog
These additional features consume more system resources and can affect the performance of your farm. If you plan to take advantage of these features, we recommend that you analyze the current capacity of your farm and determine if you need additional system resources to efficiently run the new features that you plan to deploy.
For information about planning an Office SharePoint Server 2007 architecture, see Planning and architecture for Office SharePoint Server 2007.
For information about planning an Office Project Server 2007 architecture, see Planning and architecture for Office Project Server 2007.