weird folder with ms printer drivers in my home folder

[Vitorio Okio]

All at a sudden I've found a strange folder in /home on my Jaunty.

The folder is using apparently random 30 digits number for its name.  It 
contains 2 sub-folders: /amd64 and /i386.  Each of those in their turn 
contains a bunch of same files: several .dll's, .cat, .gpd, and .inf 
files.  According to a time stamp the folder is about couple of months 
old.

The .inf file in each mentioned above sub-folders suggests that these are 
files for "Microsoft system driver files for XPSDrv print drivers."

I cannot imagine how possibly this crap could happen in my /home on a 
pure Linux laptop that is operated within a pure Linux network 
environment.

Any suggestions folks? Should I be worried about integrity of my little 
network?  

Though I do not see how possibly this junk could be used withing Ubuntu, 
especially considering its weird location in /home folder.