A small .NET application that allows you to connect to the Microsoft Access database files (*. mdb) and execute SQL-queries to them. More information in russian can be fount here - http://2lx.ru/2009/02/mdb-sql-client/
A database client cache library, now support SQLServer;
Supports .NET and COM;
The first supports cross process/machine client query cache;
Simple O/R mapping;
Even faster than general raw coded method;
Excellent than Hibernet.NET when doing query.