Windows 7: Windows Calendar Import: source of WinCal64

I've read the excellent tutorial on getting Windows Vista Calendar into Windows 7. Only problem is that despite having eight original copies of Windows Vista, none of them at 64-bit, as is my Windows 7 install.

As a Vista owner, is there a legal way to get a free copy of Vista 64-bit? Failing that, is there a safe way to get the required files?

Further to the above, I notice that there is a Microsoft update that includes WinCal.exe [clicky] is there any way to extract the required files from the .MSU?

Create a folder that is named C:\MSUFolder, and then save the MSU file to this folder.

Now you can use these 2 commands from MS-DOS prompt to extract all contents:

expand -F:* <Saved_MSU_File_Name.msu> c:\MSUFolder

expand -F:* <Saved_MSU_File_Name.cab> c:\MSUFolder