Hi Jim,

It seems you have not seen my steps. In my previous thread, I provided
detailed steps addressing your question. For your reference, I paste them
as below.

"First I would like to assume the following scenario: UserA has a sub
calendar which you would like to share with UserB.

1. Start Outlook with UserA account.
2. On the Tools menu, click Options.
3. On the Delegates tab, click Add.
4. Type UserB who will access the sub-calendar of UserA, click Add, and
then click OK.
5. In the Delegate Permissions dialog box, click to select "Editor (can
read, create, and modify items)" in Calendar list.
6. Click OK twice.
7. If the Folder List is not visible, on the View menu, click Folder List.
8. Right-click the Mailbox - <user name of UserA account>, and then click
"Properties for 'Mailbox - < user name of UserA account>'" on the shortcut
menu.
9. On the Permissions tab, click Add.
10. Type or select the UserB who will access sub-calendar of UserA, click
Add, and then click OK.
11. In the Name box, click UserB accounts.
12. In the Roles list, select permission at least as Reviewer, and then
click OK.
13. Right click the Calendar folder, click Properties.
14. In Permission tab, you will see UserB in the delegate list. Click UserB
accounts. In the Roles list, select permission at least as Reviewer, and
then click OK.
15. Right click the sub-calendar folder, click Properties.
16. In Permission tab, you will see UserB in the delegate list. Click UserB
accounts. In the Roles list, select permission at least as Reviewer, and
then click OK.
17. Click Ok to save the setting.

18. Then logon UserB mailbox by Outlook.
19. Click Tools menu and click E-mail Accounts.
20. Select View or change existing e-mail accounts and click Next
21. Select the Exchange account and click Change.
22. Click More Settings.
23. Click Advanced tab.
24. Click Add to add the UserA's mailbox in the Open these additional
mailboxes list.
25. Click OK, click Next and click finish. Then, you will see the Mailbox -
<UserA display name> with sub-calendar inside."

I hope this helps. Meanwhile, Jim, I noticed that you usually submit the
same question in several newsgroups. In order to avoid confusion, we
usually only work with customer on one thread, and archive all other
duplicated posts. I hope you can understand it can make us more convenient
toward the solution and lessen the confusion for both of us. So in the
future, I hope you can identify the property of your question and then
submit it only on one related newsgroup so that a dedicated engineer only
focus on this question. I highly appreciate your cooperation and
understanding.

Have a nice day!

Lee Li