According to the documentation "Install or Upgrade for an External CA Business Intelligence JasperReports Server" customer did the following:
4. Run the cabi or cabi_external probe as a Windows authentication user.
After this steps the spooler probe doesn't start.
Which rights does a windows user need to start the Nimbus Robot Watcher Service?
UIM 9.x/ 20.x
CABI install and set up Windows Authentication for CABI