I have just been looking through a failure report on zenworks inventory,
it seems that I have approx 30% of all my workstations have failed to
install a small script, this has worked fine on all the rest of them.

All the workstations are xp pro and as far as I know the same service

When I look on failure advanced report it is telling me...... The
network path or Access is denied (most of them say access is denied)

Whats the problem?