For the installation of the new Microsoft SQL Server 2005 (beta) you have to copy the files from c:\6091bfe0e40c1cb8ef (perhaps this id is different). Note: You cannot copy the complete folder because of an open reg file. Copy only the other files to a different location and you can use the setup for your laptop.
With the new SQL Server you get a new version of MSXML (ver. 6)! I will have a look on it how the performance will be different to the old versions later.