Recordset Research

Question

I am essentially migrating source code from visual basic 6.0 to c sharp .net  4.0/4.5 framework. My task is simply understand recordsets first. I really see no difference between a recordset and a dataset.  I am doing some research below.

 

1.Can someone point me to an a good article explaining what is recordset?

2.What is the difference between a recordset and datasets?

3.Is there a recordset assembly or class in the .Net framework, if so can you point me to a link?

4.If an application is compiled and developed successfully in a 32 bit, and then migrated and recompiled in a native 64 bit environment, are there

 any issues or concerns in general that I need to be aware of. My goal is to migrate a successful developed working application into an 64bit environment.

5.Are there any issues I need to be aware of with recordsets with 64bit memory?

6.Can "ComponentOne" third party tool integrate successfully with recordsets in a 64bit memory space or environment?