References > Creo™ Schematics Installation and Administration Guide > License Configuration > Configuring Licenses for Creo Schematics > Using PTC Installation Assistant for Licensing
  
Using PTC Installation Assistant for Licensing
You must generate or update exiting licenses to use the latest software for Creo 4.0. Licenses determine the Creo applications that you are authorized to run on your computer. The Assistant helps you perform the following licensing-related tasks:
Generate a new license file based on your product code
Update and reuse an existing license file on your computer or at a remote server location
Install a single or a triad license server