We up-graded our Windows OS to 2008 and now the " Send Window Net Message " alert no longer sends pop-ups to workstations when we receive a trap that meets the alert conditions. Any thoughts?
Unfortunately MS removed Net Send functionality in 2008 R2.
In our What We're Working on post for post-11.0 we mention improvements to alerting: Re: What we're working on post-NPM 11.0
We can look at having a desktop-notification client as part of the improvements.