<p>5:48 p.m. CDT, April 30, 2013 (Reuters) - SolarWinds Inc's first-quarter revenue missed analysts' estimates and the network management software maker forecast current-quarter results below expectations as it struggles to sell new licenses.</p><p>SolarWinds shares fell as much as 10 percent in extended trading. The company's core products are used by IT professionals and teams in companies to configure, monitor and report on the health and performance of their network, systems, and application infrastructure.</p><p>SolarWinds expects second-quarter adjusted earnings in the range of 37 cents to 38 cents per share on revenue of $77.8 million to $78.8 million.</p><p>Analysts were expecting adjusted earnings of 39 cents a share and revenue of $80.7 million, according to Thomson Reuters I/B/E/S.</p><p><a href="http://www.chicagotribune.com/business/sns-rt-us-solarwinds-resultsbre93t189-20130430,0,5877484.story">Keep reading...</a></p>