Installation and Upgrade > Upgrade Guide > Before Upgrading > Unsupported Scenarios > Solutions Including Pro/Intralink, Windchill PDM Essentials, and GPD I
  
Solutions Including Pro/Intralink, Windchill PDM Essentials, and GPD I
The following Windchill are no longer supported:
Pro/Intralink
Global Product Development I
Windchill PDM Essentials
Customers who have these solutions installed on their source system must update their solutions to PDMLink at source release level and then perform the upgrade to Windchill version 12.0.1.0.
For more information, see Installation and Configuration Guide — Update Existing Installation.