I was wondering where I can download this Hotfix?

We are having this exact problem on our webservers right now.

Exactly where the KB article says to get it from - I'll repeat it
here, pay special attention to the "Note" and as long as you follow
those instructions, you'll be set:

To resolve this problem immediately, contact Microsoft Product
Support Services to obtain the hotfix. For a complete list of
Microsoft Product Support Services telephone numbers and information
about support costs, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support
(http://support.microsoft.com/contactus/?ws=support)
Note In special cases, charges that are ordinarily incurred for
support calls may be canceled if a Microsoft Support Professional
determines that a specific update will resolve your problem. The
usual support costs will apply to additional support questions and
issues that do not qualify for the specific update in question.

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