a required installation file sky011.cab could not be found
Back upthe Registry, then Give this registry tweak a Try
you can try this :
In start > Run > Regedit
HKEY_LOCAL_MACHINE -> Software -> Microsoft -> Office -> 11.0 -> Delivery
You should have this key 90000409-6000-11D3-8CFE-0150048383C9
clik on it and (at the right of your screen), right clik on CDCache key.
and type 0 as new value