Trouble with creating unattended installation answer file

Hello Technet Guys,

I'm trying to generate unattended installation answer file for Windows Server 2008 R2 Enterprise for purpose of creating template for CloudStack. I have installed AIK on the windows 2008 R2 enterprise box ad copied install.wim from the DVD to the local disk. Now in WSIM, when try to select the windows image and load wim, I get the arror message says "Parameter count missmatch". I have tried uninstalling different versions of AIK but the same result.

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