If you report a problem with HLASM Toolkit Feature to your IBM Support Center, you will receive a tape containing one or more APARs or PTFs which solve your problem.

You might also receive a list of pre-requisite APARs or PTFs, which should have been applied to your system before applying the current service. These pre-requisite APARs or PTFs might relate to HLASM Toolkit Feature or any other licensed product you have installed, including z/VM.

The following overview familiarizes you with some of the aspects of applying service for HLASM Toolkit Feature.