You didn't say if you used Volume Licensing, but this may apply.
How to troubleshoot Volume Activation error codes on Windows Vista ...:
http://support.microsoft.com/kb/938450
Error code 0xC004F050
Symptom
When you try to use KMS, a KMS client, or a MAK to activate one or more
computers, you may receive the following error message:
0xC004F050
The Software Licensing Service reported that the product key is invalid.
Cause
This issue may occur if the KMS key is not entered correctly. Also, this
issue may occur if the key for a beta version of the operating system has
been entered when you are using the release version of the operating system.
Workaround
To work around this issue, install the appropriate KMS key on the
corresponding version of Windows. Verify that the key is entered correctly.
If you copy and then paste the key, make sure that em dashes (—) are not
substituted for en dashes (-) in the key.
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Mark L. Ferguson
..
"dj" <> wrote in message
news:8802457C-DFFF-40AB-9BEE-...
> Hi Mark,
>
> Thanks for the suggestion but I still have the same problem.
>
> When I let the page download the new active-x agent and it runs it comes
> back with the message "The Product ID number you provided is not valid or
> it
> is not in the correct format....."
>
> Yesterday I tried entering the Product ID manually (using the ID exactly
> as
> provided in control panel page where it shows that Vista license is
> activated).
>
>
>
> "Mark L. Ferguson" wrote:
>
>> Open IE, tools menu, "Manage Add-ons" and delete the activeX component
>> for
>> that. Go back to the site to get a fresh copy.
>>
>> RMGetLicense is on the 'run without permission' set of add ons in the
>> dropbox.
>>
>> --
>> Was this helpful? Then click the Ratings button. Voting helps the web
>> interface.
>> http://www.microsoft.com/wn3/locales....htm#RateAPost
>>
>> Mark L. Ferguson
>>
>> .
>>
>> "dj" <> wrote in message
>> news:F1ADD376-743D-4AA4-9C81-...
>> > When trying to get Microsoft chat or email support via the online
>> > support
>> > forms the Windows Vista Product ID is not accepted by the Active-x
>> > agent
>> > or
>> > when entered manually. I am using activated Windows Visa Ultimate.
>> >
>> > Spent a completely fruitless and frustrating 30 minutes on phone with
>> > Microsoft in US without any resolution. Can anyone here help? Has this
>> > been a
>> > problem others have identified?
>> >