Edit to my previous post: It should read the following instead.
Following your instructions and using cut & paste and then changing [start
backup – allcritical –backuptarget

: -quiet] to [start backup – allcritical
–backuptarget:C: -quiet]. When I hit OK I get an error message [One or more
of the specified arguments are not valid]. I even tried removing and adding
[space]s between the [-]s. Is it a syntax problem or I'm I doing something
wrong?
In the Create Task - Actions Tab it says under Action [Start a progrqam] and
under Details [wbadmin start backup – allcritical –backuptarget:C: -quiet]
and then I hit OK and get error message.