An MSDN Subscription gives you priority access to essential developer resources, including Visual Studio .NET, Microsoft product updates, vital programming information and early delivery of everything you need to build solutions using Microsoft technology. MSDN also enables organisations to cost-effectively license and manage test and development environments. Types of MSDN Subscription Universal Prioritised continuous access to Visual Studio .NET 2003 Enterprise Architect. Enterprise Prioritised continuous access to Visual Studio .NET 2003 Enterprise Developer. Professional Prioritised continuous access to Visual Studio .NET 2003 Professional. Operating Systems Priority access to Microsoft Operating System updates. Library The Windows® platform developer's essential reference. Useful MSDN Subscription links Comparison guide Support