We are currently implementing Sharepoint with a web site
and need to know if you can:
1/ add a user to the workspace from NT accounts, and,
2/ set that user up with a given user-role (e.g. coodinator)

using the sharepoint object model (i.e. code!) as if using the security
tab in the management console.

So far, we can access a folder - say documents - and get a list of users
that
are either coordinators, authors, readers, but we need to get hold of
thier default user-role for the workspace, rather than permissions for a
particular
folders. I would also like to know if we can run such code from the
client machine - so that the client activates code on the server that
can read in an NT user and then access their security role (i.e. are
they reader, coordinator, author).