PHDWIN WEEK 2025

September 8-12

Happy Holidays! We’re grateful for your support and wish you a joyful season.

Welcome to the PHDwin Download Website
Support is online M-F from 9:00 am - 5:00 pm (CDT).

How to Unlock PHDwin V3 by Requesting a License File

To use PHDwin software, you have two options: For Single-User/Standard installations:

  • Purchase and activate an activation code for each computer that will be running PHDwin.
  • The software can only be installed on the licensed computer.
 

For Concurrent-User/Network License:

  • Purchase and activate a concurrent-user license to use license server, which allows a specific number of users to access PHDwin from any computer on the same network.
  • The software can be installed on multiple computers, but only the licensed number of users can access it at the same time.
  • If your computer is running a Windows Server OS, you must use a network seat license as standard licenses are not supported.

Single-User / Standard Installation

Step 1 – Request a New PHDwin Unlock Code (.lic File / string)

    1. Open PHDwin to the splash screen/login window.
    2. Click on the Registration button – this will open a new window.
    3. Fill out the form completely – every field must be filled in to complete the request.
    4. Verify the System ID field has been populated – this is required before you send in your request.
    5. Email the request to the license team using one of the following options
    • Click the Request button. This will use your default email program to generate an email with the correct information pre-populated. You just need to send the email.
    • If your default mail program does not automatically generate an email, you will need to email the information in the registration to the license team. You can take a screenshot of the completed registration form by pressing Ctrl + PrintScreen OR you can type in the information including your name, company name, address, phone, email, and system ID. When you are finished, send the message to license@phdwin.com with the subject line “License Request for PHDwin Version 3”
PHDwin V3 Open Splash Page
PHDwin V3 Open menu request license menu

Step 2 - Saving a License File

Once the license team receives your email, they will process it and send you back a license file.

Saving your License File:

  1. Open the email received from license@phdwin.com.
  2. Save the email attachment named PHDwin.lic to the C:/Program Files/TRC Consultants/PHDwin 3.1/Config folder.
  3. Open PHDwin to confirm that the license has been activated and registration was successful.
 
 

If the steps above do not work, try saving the license string directly. To do so:

  1. Open the email received from license@phdwin.com.
  2. Open PHDwin. On the login window, click on Registration.
  3. Click on the Save As button and copy and paste the license string from the email into the Save As window.
  4. Click Apply and Close the registration window to confirm that the license has been activated and registration was successful.

Note that if you encounter any issues during the licensing process, you can contact the PHDwin support team for assistance.

A single-user unlock license file allows a single individual to access PHDwin V3 on a single machine. Access to the software is limited to the computer on which the software is installed.

Please submit a support ticket with the link below.