Download PHDwin Existing PHDwin customers can access PHDwin V3 and all PHDwin V2 (legacy) downloads via the client portal. Access the Client Portal Looking for a free trial of PHDwin?Use this link to request a free trial license for PHDwin V2, PHDwin V3, or both! During your trial, you will be given access to the customer portal that contains helpful tutorials, documentation, downloads, and a direct line to our help desk. PHDWin Free Trial