"catchme.cfxxe " is trojan malware. Its safer if you remove it. If you couldn't remove from the anti-virus you have already, you can download Kapha Anti-Malware, which is helpful to remove such threat programs.
You can use following link to download "Kapha Anti-Malware"
CD Emulators are software application using which you can create/play virtual CD drive on your computers.
To the operating system, this appears as though you have another one (or more) new DVD or CD drives. Instead of placing a physical CDROM or DVD into this virtual drive, you "mount" an ISO image of the real CD or DVD using the drive.
Thank you :)
Isha Krishna KP