PNSetupMgr

[#1]

I am having problems with one of my pcs. It is running very slowly, and when I close it down, I get a window pop up with a message about PNSetupMgr. I've Googled this and there are various 'solutions', but I also have something on that pc that is called Plusnet Assist (is that just coincidence that the PN in PNSetMgr could be Plusnet?).
Any ideas what is happening please?
Thanks

[#2]

I believe it is a coincidence as Plusnet Assist doesn't have anything by that name

[#3]

Thanks OldJim. Any thoughts on whether PNSetupMgr is a problem, and if so, how to get rid of it, please?

[#4]

Only by Googling which you have done
You could start by opening Task Manager ,
Select Show processes for all users and see what is there and where it is coming from

[#5]

Despite Oldjims advice, I recommend you get rid of Plusnet Assist as it will slow down your computer and its usefulness is highly debatable. 

[#6]

Considered opinion for PNSetupMgr is that it may belong to a program called "PopNot", a pop-up blocker.  Of course the same name could have been used elsewhere also.

[#7]

I've got rid of PlusNet Assist, and I have followed two suggestions found on Google - run Spybot, and go into Start and remove the tick on realsched.exe. That has got rid of this PNSetupMgr problem
Thanks for the help