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Two Exchange Accounts on one WM 6.5 Phone

I know this question has been asked before in othe forums, but there just doesn't seem to be any clear answer.  I am trying to set up two separate Exchange accounts on one Windows Mobile 6.5 device (HTC HD2).  I have read in other forums that there is an easy registry fix by changing the "EnableNonLocalCrossPollination" registry key from 0 to 1 on the device.  This is supposed to allow multiple exchange accounts to be set up on the same device and I have seen several people state that this has worked for them.  I have tried this registry edit on my device but I can still only set up one Exchange account.

Where can I go from here?
Watch Question

Solutions Architect
As far as I know sync multiple exchange servers is only possible with windows phone 7 it is a new feature.

This registry hack will allow to sync with 2 computers or one 1 pc and one exchange.

I might be wrong thought
I have win 6.1 and its not possible on that, cant vouch for 6.5
Alan HardistyCo-Owner
Top Expert 2011
Windows Phone 7 series is going to bring this feature to Windows Mobile phones as and when it is released, which is rumoured to be this summer sometime.
The iPhones with iOS4 can achieve this and it is really good, so when it arrives in the Windows Mobile arena it will be a welcome addition.
Unfortunately until then, you will have to wait : (
Awarded 2009
Top Expert 2010

This question has been classified as abandoned and is being closed as part of the Cleanup Program.  See my comment at the end of the question for more details.