Hello RMG - I'm glad you got that cleared up. It seems it might be best to print out some removal instructions and keep them handy, just in case the worst happens.
Do you know how and where the infection was picked up? If it was a drive-by infection (happens without any interaction from the user), then a program like Sandboxie would likely have prevented it from automatically installing. If it was invited onto the computer by way of trickery, or it came hidden in free software, then this program wouldn't help.
Under those circumstances, it would be hoped that the AV program would step in and give a warning and/or prevent infection. I note that it didn't. I have read of other cases where it wasn't picked up by the AV program. Since this infection seems fairly common at present, I wonder why AV programs don't seem to do so well at detecting it.
I have a looked at removal methods since your post and note that not all sites are rated as safe according to WOT (Web Of Trust), so I thought I might just put a link to a page that gets the WOT green safety icon. A few different ways of removing PCeU are described. http://malwaretips.com/blogs/pceu-virus/