This isn't news but I thought I should highlight it in case its new to you.

If you want a hotfix for a problem Microsoft has resolved in MSMQ (or in any other of their products) then you don't need to phone in and raise a support request.

You can instead use the Hotfix Request Web Submission Form to request a patch. The SLA is eight business hours so basically the next day you should receive an email with the download link in it. Make sure "Microsoft.com" is in your email safe list and check your Junk Mail folder if you don't seem to receive anything from Microsoft Online Customer Service and Support.

As commented, the process for obtaining hotfixes has changed.

The Hotfix Request Web Submission Form has been retired in favour of links within the Knowledgebase articles themselves. For example:

FIX: Error message when you use Report Manager in SQL Server 2005 Reporting Services to view a report: "The request failed with an empty response"
http://support.microsoft.com/kb/918555

has a Resolution as follows:

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:
http://go.microsoft.com/?linkid=6294451

The links have not been rolled out to ALL KnowledgeBase articles (for a variety of reasons) and for those the Resolution is the old-school one:

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix.
For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:
http://support.microsoft.com/default.aspx?scid=fh;[LN];CNTACTMS

Two steps forward, one step back...