This documentation is available online with the SAS System. If you are using the SAS windowing environment with pull-down menus, you can select SAS Help and Documentation from the Help menu. Under the Contents tab select SAS Products, then SAS/QC, and select SAS/QC User's Guide from the list of available topics.
Alternatively, you can type help QC in the command line. Note that you can use the online facility to search the documentation. You can also access the documentation from the SAS Web site. Go to support.sas.com and select Documentation for more detail.