[ntype]

Microsoft Express are basically full versions of programs but with some limitations.
The good point is that they are FREE

http://msdn.microsoft.com/vstudio/expres...t/install/
Sql server 2005 express :
http://msdn.microsoft.com/vstudio/expres...fault.aspx

Available :

Visual Web Developer 2005 Express Edition
Visual Basic 2005 Express Edition
Visual C# 2005 Express Edition
Visual C++ 2005 Express Edition
Visual J# 2005 Express Edition

For example as a limitation, the SQL server 2005 express edition :

1GB RAM usage maximum.
1 Processor maximum (multicore managed).
4GB total DB size maximum.