Just planing to do the WHW next year and I have read that on two sections of the walk dogs are not allowed at all. Can any shed light on this. Can you just bypass the area by walking round it or not possible.
Any information would be great.

http://www.west-highland-way.co.uk/ww_faq.asp#q14

try the link above - it looks clear enough to me.
you can bypass the restricted area - we had to, when the area was out of bounds 10 years ago in the Foot & Mouth outbreak

Thats interesting following on from that link, I see the Scottish Outdoor Access Code states that cyclists have the same rights as others, including walkers to use footpaths.
In England cyclists can use Bridleways but not footpaths.
Dave.

Yes, you can just take alternative routes, which include road walking, but they are not overly busy roads.

However, at Tyndrum I asked the tourist office about walking my dog across the next section to the Bridge of Orchy which I wasn't supposed to be able to do. They said as long as my dog was on the lead it would be ok. That morning I saw a farmer just as I set off and also asked him if it was ok. He was fine about it and just said it was irresponsible dog owners letting their dog run madly where there were sheep which was the problem.

So no problem.