Hello! >> I would like to know how does ArgyllCMS software work under >> Windows? Is there a GUI, or is it, like for Linux, a >> command-line tool only? If so, is there a third-party front-end? Year ago I've made a small GUI for Windows, I hope this can make first steps with ArgyllCMS little bit easier. http://www.colorart.ru/Uploads/Downloads/GUI_4_Profile_v1.0RC5.zip It's an open source project. It doesn't need an installation. It allows CMYK and RGB printer ICC profiles creation with almost all ArgyllCMS advanced settings available. It accepts ASCII measurements files from X-Rite (former GretagMacbeth) MeasureTool v.5 only. Best regards, Alexey Gribunin, UNIT Color Technologies, Moscow, Russia.