Active directory migration between 2 forests

sos2112
sos2112 used Ask the Experts™
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I have 2 forest which eanch one has one domain, the 2 domains have a an external trust setup between them 2 ways.

I'm trying to migrate users from domain A to domain B but keeping the source as it is so is like a copy using ADMT v3.0 but everytime i receive this error "Unable to establish a session with password export server. The specified service does not exist as an install service" when i choose the option of migrating passwords, but if uncheck that and go forward the migration fails with the errors below:
ERR2:7816 Cannot determine if source object "......" matches an object in the target forest or domain.  The handle is invalid.
ERR2:7301 Failed to migrate source object '.......'. The target object could not be created. hr=0x80070006  The handle is invalid.
So can anyone help me with this.
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Commented:
Are you running this on the source or target domain?
Take a look at this, it was the same issue.

http://www.experts-exchange.com/Networking/Windows_Networking/Q_22464275.html
Technical Architect
Commented:
Please have a look on http://support.microsoft.com/kb/832221.It should help you.
I assume you have Windows server 2003 in your current domain ? Are you also planning on migrating the mailboxes ?

Which version of exchange server do you have in your current domain and which exchange server version will you have in your new domain ?

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Commented:
I only had to install the PES, and it did work

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