Mystery Folder 7ed1x6bd4bb6xec1d2841cca98341x - Redux

So we had the discussion about these temp folders - mine is created by
installing .NET Framework 3.5.
But what is the logic about where these folders go?

I finally got around to installing .NET 3.5 on a second computer and this
temp folder was created on the H: drive (!?). The first computer had it on
the C: drive (logical enough). This second box has 2 hard disks. The first
is divided into Primary C: Primary D: and Extended with Logicals F:, G:, and
H: The second disk is divided into Primary E: (Swap Disk), and Extended with
Logicals I:, and J:.
So why H? Is there some logic to Window's choice? (XP-SP3)