In Internet Information Services Manager, you're given the option between the Personal and the Web Hosting certificate store when creating or importing a certificate.
What's the difference?
I agree with CyptoGuy that IIS.NET states the the difference is that Web Hosting is designed to scale to more certificates. I think I found another important difference, which is that I have yet to find a way to access the Web Hosting store from .NET code. Specifically because there is not a StoreName
enumeration value for Web Hosting: http://msdn.microsoft.com/query/dev12.query?appId=Dev12IDEF1&l=EN-US&k=k%28System.Security.Cryptography.X509Certificates.StoreName%29;k%28TargetFrameworkMoniker-.NETFramework