Investigating something else, I came across this oddity:
From PowerShell:
PS C:\Users\me> (gci "C:\WINDOWS\System32\sp*" -File).count
36
From QnA (using Fixlet Debugger, Client, and Query Channel with Client)
Q: number of (files of folder "C:\WINDOWS\System32\") whose (name of it as lowercase starts with "sp")
A: 15
T: 52.000 ms
What gives? 