Hmmm, this is very interesting.  Microsoft has released another ‘Virtual Machine Appliance’ (much like the previously released IE7 readiness VPC). 

I say “very interesting”, because if I was an Exchange administrator this would really appeal to me.  Download and run the tools I need to fix the problem — no messing about with ‘flatpack install guides‘ putting tools together. 

Anyway, more details on Microsoft Downloads : ‘Virtual Machine for Microsoft Exchange Calendar Update Tool’, a snippet is below:

Microsoft® Office Outlook must be installed prior to installing this tool.
Download the three files:
ExchangeDSTTool.part1.exe
ExchangeDSTTool.part2.rar
ExchangeDSTTool.part3.rar

Unzip the files with WINZIP. Then add the VMC file to Virtual PC or Virtual server. Verify that the network configuration for the Virtual Machine is correct for your environment and add the Virtual Machine to your domain.
The local administrator password is pass@word1.
The Exchange tools are installed and should be launched from c:\DST

I’m bandwidth challenged at the moment, so I haven’t had a chance to download it and check it out.

NOTE:  This is for fixing the US DST update, not the WADST.