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ADPRED was unable to extend the schema, Win2k to 2k3 domain migration

Last Modified: 2013-12-05
I know this issue has been addressed here before, but I can't fix it based on the existing solutions.  Running an Win2k AD with Exchange 2000 on another server (also a DC).  Tried running ADPREP in anticipation of migrating to a WIN2k3 Domain.  But, I'm getting the dreaded "There is a Schema conflict with Exchange 2000.  The schema is not upgraded." error.  I've tried the inetorgperson fix routine mentioned here and in MSKB article Q325379.  I'd appreciate any other help addressing this.  Please let me know if you have any further questions.
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