Access to the registry key in HKEY_CLASSES_ROOT is denied...

Hi,

     We are moving the intranet asp.net web applications running in win 2000 using IIS 5 to windows 2003 using IIS 6.0.when I run the

application in the new server ,I get the Access to the registrykey in HKEY_CLASSES_ROOT\nameof the key  is denied... error message.

We did not have any issues in the old server.I have the registry key in the new server.It looks like a permissions issue.But I  don't know how to fix the error.

Please let me know how to fix this error.
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