Need a Better Understanding of Windows Registry/How to set values?

[juniorvbdotneter]

I would like a better understanding of what type of values should be set in the following:

hkey_classes_root
hkey_current_user
hkey_local_machine
hkey_users

Also, I would like to know when setting keys, what would be the meaning for the following types of keys:
string value
environment string value
Binary value
DWORD value

After reading some in the help from VS.NET, I still don't have a good grasp of the above topics. Are there any websites/books that give a better understanding of this?

Also, if I wanted to include a file for installation on clients machine and this file is always accessed in the code and I wanted to store this file under the application folder, what key/type/property would I set in the registry to store the filename? How would I do this in the setup/deployment project?

Thanks,

JuniorVBDOTNeter