Spigot.inc and potential PUP(s)

Hi
We have found some Spigot.inc nonsense on our Vista Ultimate desktop.

We managed to uninstall all but 2 files, one is from Spigot.inc, is called "Uninstall" and the properties > Details tab has the Product Name: Search Protection Setup it is 488KB and is located in C > ........ > AppData > Roaming > Search Protection.  

I don't know where the other file is located and Control Panel identifies the other file as "Browser Extensions" (1.82 MB). Our attempts to uninstall this application with the Windows Uninstaller returns a NSIS ERROR.

We ran a Malearebytes scan which identified 13 Spigot.inc files which we have quarantined.  So, what to do? net searches suggest the "Uninstall" application has a high probability of being a trojan, do we just delete/shred it?

What to do now does any body have ideas/suggestions?

Regards.