From readme
Welcome to LinqtoCRM
Getting Started
===============
* Add the following files to your project: CrmQueryProvider.cs, CrmWebService.cs, Evaluator.cs,
ExpressionVisitor.cs, IService.cs, QueryFormatter.cs, QueryProvider.cs, TypeSystem.cs
* Correct the name of the webservice reference in CrmWebService.cs
* Add a reference to stunnware.CRM.Fetch.dll.
* Add "using LinqtoCRM;"
Start Coding!
Limitations
===========
You can only select anonymous types consisting of CRM entity attributes, like this:
select new { myContact.fullname, myAccount.name }
... or select full entities which will retrieve all attributes:
from c in p.Linq<contact>() select c
No support for N:N relationships.
Notes
=====
The current project was built with VS 2008 RTM and is known to work against CRM 4.0 RTM.
Check the codeplex page for updates: http://www.codeplex.com/LinqtoCRM
Found a query you think should work, but LinqtoCRM breaks or returns the wrong data? Please
send it to me at friism+linqtocrm@gmail.com or create a workitem in the codeplex site.
Contributers
============
* Michael Friis (initial version, maintenance)
* Michael Höhne (fixes to result parsing code, provided FetchXML lib)
* Mel Gerats (implemented paging with skip/take, chained queries, contains, count and many other improvements to the code)
---
Michael Friis
http://www.itu.dk/~friism/blog/