Good morning. We have successfully implemented iPrint in our environment.
Placed all my corporate printers on the map. If the user does not have
iPrint client installed it recognized that by prompting if you wish to
install iPrint client. But when you lick OK to install it shows the
Not Found
The requested object does not exist on this server. The link you followed I
either outdated, inaccurate, or the server has been instructed not to let
you have it.

I can install any printer from the iPrint map, just cannot install the
client. NIPP.exe is present in the IPPDOCS directory on the server.