CPC not working for TFS2010 projects


Environment - PagLab
Browser - All
Build Ver - 16694
Test case# -
Automated - No
Regression - Yes

Repro Steps
  1. Create a TFS 2010 project (unpublished)
  2. Try to checkout some code from a project via CPC.exe
  3. Upon prompting for username and passoword, type in your valid username and password
Expected Output
Upon successful validation of credentials, user expects to checkout the source code

Actual Output
The error is thrown:
error: Attempted to perform an unauthorized operation.

** Imprtant: For published project checkout, it prompts user to enter credentials, which is not a correct beahvior. CPC should checkout code for published project w/o any prompting for user cred