Source: https://support.cch.com/kb/solution/How-do-I-install-the-custom-letter-templates-for-CCH-ProSystem-fx-Tax?language=en_US

  

This message is typically caused by the Microsoft Word template files for CCH ProSystem fx Tax (*.DOT files) not being found in the user's template folder. When a user runs Workstation Setup, the process should copy these files to the user's template folder. 

Complete the following to resolve the issue:

  1. Login with admin account on the RDS server that the user is currently on
  2. Go to H:\WFX32\INSTALL 
  3. Copy the WFXYY.DOT files to C:\Users\[User ID]\AppData\Roaming\Microsoft\Templates