What's the difference between struct and class in .NET?

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A short summary of each:

Classes Only:

Can support inheritance
Are reference (pointer) types
The reference can be null
Have memory overhead per new instance
Structs Only:

Cannot support inheritance
Are value types
Are passed by value (like integers)
Cannot have a null reference (unless Nullable is used)
Do not have a memory overhead per new instance - unless 'boxed'
Both Classes and Structs:

Are compound data types typically used to contain a few variables that have some logical relationship
Can contain methods and events
Can support interfaces

Fount at:
http://stackoverflow.com/questions/13049/whats-the-difference-between-struct-and-class-in-net
http://geekswithblogs.net/BlackRabbitCoder/archive/2010/07/29/c-fundamentals-the-differences-between-struct-and-class.aspx