Tuan, I have a demo from DQS- DataNet Quality Systems, WinSPC. www.winspc.com Can't tell you if it works yet. But this gives you 1 source. From: Tuan Le <[log in to unmask]> on 11/18/99 12:40 AM GMT Please respond to "TechNet E-Mail Forum." <[log in to unmask]>; Please respond to Tuan Le <[log in to unmask]> To: [log in to unmask] cc: (bcc: Janice LePage/US/Centigram) Subject: [TN] SPC software I am looking for a program to do SPC, to calculate Cp, Cpk and so on. I'd appreciate any inputs. Thank you in advance. Tuan Le [log in to unmask]