What ActiveX control is it?

>I have just completed a upgrade of my system including a new drive, Operating system ( XP ) and Upgrade to VP7 from VP6 .
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>I did fresh reinstilations not upgrades.
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>I have basicly kept the same directory structure as before.
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>The problem is with the _Datetime picker that I have in a form.
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>It now askes for a *.OCX file. Here lies the problem.
>When I open up _datepicker it indicates that Mscomctl2.ocx is the parent.
>This file does not exist. I understand that Mscomctl2.ocx is containd in the file mscomct2.ocx. However when I direct the system to this file I get the error : OLE error code 0X80040154 Class not regestered .
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>I have considered deleting the class in the form and then reinserting it but this should not be nessassary.
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>Any help would be apreciated.
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>Thank
>Brian