I am on Windows 7 Ultimate.
I have done done start..ctrl panel..programs..turn windows features on and off...and ticked Subsystem For Unix Applications

When I click the start menu, I see it isn't installed but it has

I then followed the link in my start menu which went to a webpage to download it. No need to register and it downloaded Utilities and SDK for UNIX-based Applications_X86.exe
extracted it to C:\sua32
C:\sua32>dir
Volume in drive C has no label.
Volume Serial Number is DC46-3C68
Directory of C:\sua32
11/18/2014 11:25 AM <DIR> .
11/18/2014 11:25 AM <DIR> ..
11/18/2014 11:24 AM <DIR> BaseUtils
11/18/2014 11:24 AM <DIR> docs
04/01/2008 01:21 PM 170,557 install.htm
11/18/2014 11:24 AM <DIR> manage
11/18/2014 11:24 AM <DIR> SDK
11/18/2014 11:25 AM <DIR> setup
04/02/2008 02:57 AM 24,120 setup.exe
04/02/2008 02:57 AM 1,638,912 setup.msi
11/18/2014 11:25 AM <DIR> sources
04/02/2008 02:57 AM 24,120 upgrade.exe
4 File(s) 1,857,709 bytes
8 Dir(s) 126,447,235,072 bytes free
C:\sua32>
I notice it has a setup.exe (which I will run), and it has files that look like they would be the commands but they have no exe extension.
C:\sua32\BaseUtils\bin>dir
....
01/18/2008 06:18 AM 101,888 wc
01/18/2008 06:19 AM 118,784 who
01/18/2008 06:19 AM 591 whoami
...
212 File(s) 36,907,662 bytes
2 Dir(s) 126,443,298,816 bytes free
C:\sua32\BaseUtils\bin>
I ran setup.exe
and it installed to C:\windows\sua
C:\Windows\SUA>dir
Volume in drive C has no label.
Volume Serial Number is DC46-3C68
Directory of C:\Windows\SUA
11/18/2014 12:05 PM <DIR> .
11/18/2014 12:05 PM <DIR> ..
11/18/2014 12:06 PM <DIR> bin
11/18/2014 12:04 PM <DIR> common
11/17/2014 05:52 PM <DIR> dev
11/18/2014 12:04 PM <DIR> docs
11/18/2014 12:06 PM <DIR> etc
11/18/2014 12:04 PM <DIR> help
11/16/2014 11:11 PM <DIR> net
11/18/2014 12:05 PM <DIR> opt
11/16/2014 11:11 PM <DIR> proc
11/18/2014 12:05 PM <DIR> svr-5
11/16/2014 11:11 PM <DIR> tmp
11/18/2014 12:05 PM <DIR> usr
11/18/2014 12:04 PM <DIR> var
0 File(s) 0 bytes
15 Dir(s) 126,443,307,008 bytes free
C:\Windows\SUA>
It includes these files in C:\Windows\SUA\bin>
01/18/2008 06:18 AM 101,888 wc
01/18/2008 06:19 AM 118,784 who
01/18/2008 06:19 AM 591 whoami
I see no exe extension, and no special shell
How are these meant to run? Or, how am I meant to run these?
I can rename or copy a command e.g. who to who.exe and run it but surely that's not how i'm meant to run it.
How am I meant to run these?