is it available under tools=Addins? If so, check both Analysis Tookpak
and Analysis Toolpak - VBA. The later contains the VBA callable versions of
the functions.

If not go to the control panel and do add/remove software and start office
install.

--
Regards,
Tom Ogilvy


zSplash wrote in message
...
Thanks, Norman, for the help. I guess I just didn't read the expanded
help,
and assumed. Sorry.

So, how do I access (or install, if necessary) the "Analysis Toolpack"
functions? This is new to me. (I don't see it in my References...)

st.

"Norman Harker" wrote in message
...
Hi zSplash!

I think that you are misunderstanding what DATEDIFF means by "w" and
"ww" arguments.

Extract from Help:

When interval is Weekday ("w"), DateDiff returns the number of weeks
between the two dates. If date1 falls on a Monday, DateDiff counts the
number of Mondays until date2. It counts date2 but not date1. If
interval is Week ("ww"), however, the DateDiff function returns the
number of calendar weeks between the two dates.

Both are counting weeks which is why in your case you are getting the
same answer.

To count weekdays use the Analysis ToolPak NETWORKDAYS function.

--
Regards
Norman Harker MVP (Excel)
Sydney, Australia

Excel and Word Function Lists (Classifications, Syntax and Arguments)
available free to good homes.
"zSplash" wrote in message
...
I am trying to count weekdays, using the "w" argument
unsuccessfully. I get
the same value for "w" (weekday) as I do for "ww" (week). What am I
doing
wrong?
Code:
estDays=DateDiff("w", ufm1.Calendar1, ufm1.Calendar2)

TIA