The best utility that existed for screen captures in Entropia was GCS, "GrabClipSave". You could press the PRT SCRN button, or any other of your choosing, and it would not only take ONE screenshot, but a series of them if you desired, and automatically place the images in a folder, also of your choosing. There was no need to open up image-editing software, pasting, Alt-Tabbing, etc...
Sadly, GCS stopped working within Entropia years ago, and I haven't found anything that works as easily as that. FRAPS was a pain to configure and is more of performance-monitoring tool than a screen grabber.
If anybody knows of a FREE utility that can do series of screenshots auto-copied to a specific folder, without alt-tabbing, I'd love to know about it.