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Oh I remember having a macbook with a UK keyboard, that was quite a pain, but can't remember having problems with the backslash, my issues where with a tilde (~)
Eg. my keyboard looked like the British one on this link:
That layout has a backslash on the actual keyboard.
I don' t have that machine anymore, but a quick search suggests to try either:
Alt+Shift+# (hash character) the text is not clear it might also just be Alt+#
Right apple key + " (double quote)
It is even mentioned to use "Alt+0092" (don't think that will work, but better to have one extra way to try)
What is unclear to me in your question is if your keyboard doesn't have the backslash key or if it is a keyboard mapping problem when using VMware Fusion.
Wil| Author of Vimalin. The VMware Fusion Backup app |
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| http://www.vimalin.com/why-is-time-machine-not-a-good-backup-for-virtual-machines/ |
I have a spanish keyboard and i had the same problem.
Try with "Ctrl" + "Alt" + "<>"
It works with spanish Keyboards