In many occasions issues are reported for command tasks/ pre post session commands etc on Windows with the description that it runs outside of Informatica but fails to run inside Informatica.
This video describes How to check if a command script/ batch script runs fine under windows system user command. the steps mentioned helps identifying various problems even before deployed in Informatica.
How to unassign services from an expired key and assign them to a valid key in 9.1.0 and 9.5.1
How to automate the repository and domain back up process for disaster recovery in PowerCenter
How to find in which host the Repository Integration service is running in a multi node domain