4 serials | parallels workstation 
| Date | OS | Name | Version | Rating |
|---|---|---|---|---|
| 2007-07-01 | PC | Parallels Workstation |
2.2.2112 | 57.89% |
| 2007-07-01 | Mac | Parallels Workstation |
Unknown | 53.33% |
| 2007-01-01 | PC | Parallels workstation |
2.2 | 48.57% |
| 2006-01-01 | PC | Parallels Workstation |
2.0.1514 | 55.65% |