DGuitar is a Guitar Pro (*.GP4,*.GP3,GTP) viewer and player that works under Linux, MacOs, Solaris, BSD, Windows, or any other operating system with Java Runtime 1.4.X. http://DGuitar.sourceforge.net
If you are a JAVA developer visit this page https://bitbucket.org/mauriciograciag/dguitar/overview
Good work! Interesting project!
Since Printing doesn't work it's useless for me...
It's good for the older gp files but it has been such a long time since any updates, and is falling behind on files types, it really is overdue for updating to be able to use gp5 and now gpx files.
Virus warning is not real. It is an issue with some mirrors. If it does not work make sure you have JAVA http://www.java.com