Jan, you might want to check out Citristrip Adhesive Remover. They have a site at www.citristrip.com and products marketed by the same company are at www.kleanstrip.com. I don't believe in using methyl chloride based product but I think that the Citristrip paint stripper is a pretty good mix of safety with enough power to do the job. I have never seen or used Citristrip Adhesive Remover but I would guess that its in the same category. The Kleanstrip site is currently updating the product info section or perhaps I could give you more info.
No, I do not have any interest in or get anything of monetary value other than some very occasional samples. I'm sure that Hy will be along to tell you about Peel Away soon.