The Dallas Cowboys signed free agent quarterback Aaron Corp and invited two undrafted free agents to minicamp on Tuesday.Corp signed with the Buffalo Bills as an undrafted rookie free agent out of Richmond following the 2012 NFL Draft. He was released on May 14, 2012 and remained out of football until re-signing with Buffalo on Feb. 14, 2013. The Bills released him again on April 29.Corp began his collegiate career at Southern California in 2007 and redshirted. He was the team’s third quarterback in 2008, appearing in five games, before winning the starting job in the spring of 2009. Corp cracked the top of his fibula in his left leg in the 2009 fall camp and Matt Barkley won the starting job. He transferred to Richmond in 2010 and started the first five games before suffering a season-ending knee injury. He completed 67 passes for 645 yards and three scores in the four full games before his injury.He returned in 2011 to start all 11 games for the Spiders, throwing for 2,682 yards and 17 touchdowns while completing 247 of 388 passes. He set an NCAA FCS single-game record for completion percentage (91.2) by completing 31 of 34 throws against Towson.The Cowboy invited Texas Tech receiver Darrin Moore and Houston linebacker Everett Daniels to participate in this weekend’s minicamp on a tryout basis, according to their agent, Garriet Blair.They will join seven 2013 draft picks, signed undrafted free agents and a select group of first-year players at the minicamp Friday through Sunday at the team’s Valley Ranch headquarters.Moore had 92 catches for 1,032 yards and 13 touchdowns as a senior at Texas Tech in 2012.Daniels recorded 111 tackles last season.