My book might mention the RPC limit but it's strictly an Exchange setting
that's controlled by a registry setting on the server. It limits how many
RPC channels any application can open at any one time so as not to bog down
the server. Since the setting can be anything if the admins change the
default, all you really need to understand is to follow best practices and
release your objects as soon as they are not needed and not to create
intrinsic object variables by using compound dot operators, especially
within loops where the objects will persist until the procedure running the
loop has ended.

I don't understand your question about folder browsing. Just use a recursive
procedure that digs into each MAPIFolder.Folders collection, starting with
the NameSpace.Folders collection or at a selected starting point.

--
Ken Slovak
[MVP - Outlook]
http://www.slovaktech.com
Author: Professional Programming Outlook 2007.
Reminder Manager, Extended Reminders, Attachment Options.
http://www.slovaktech.com/products.htm


"Richard Elgert" relgert[at]tct-inc[dot]com wrote in message
...
retValue = System.Runtime.InteropServices.Marshal.ReleaseComO bject(oMsg )
GC.Collect()

OK I did add the above 2 lines and the 250 limit error is gone.... but I
am not sure I fully understand... (will your book clarify)

and a follow up, I need to browse all folders and sub-folders in a users
mailbox. . Submitted using http://www.outlookforums.com