Outlook doesn't have any feature that meets your description of "associated calendar with this folder." A folder is either a calendar folder or it's not. A folder does not have any "associated calendar."
Maybe you should provide more details on what you're trying to do.

Signature
Sue Mosher, Outlook MVP
Author of Microsoft Outlook 2007 Programming:
Jumpstart for Power Users and Administrators
http://www.outlookcode.com/article.aspx?id=54
> Dear All,
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> Systems Engineer