Trying to apply a patch to the Desktop Client 11.3 SP1 returned the error:
" Cannot complete the install because of a conflicting dependency.
Software being installed: CA Workload Automation Desktop Client
126.96.36.199306061122_1069 (com.ca.wa.desktop.workbench.feature.feature.group 188.8.131.52306061122_1069)
Software currently installed: Shared profile 184.108.40.2060093034868 (SharedProfile_SDKProfile 220.127.116.110093034868)
Only one of the following can be installed at once:
CA WA WSDL Parser 18.104.22.168209210305_505 (com.ca.wa.desktop.wsdl 22.214.171.124209210305_505)
CA WA WSDL Parser 126.96.36.199306061122_1069 (com.ca.wa.desktop.wsdl 188.8.131.52306061122_1069)
Stop the Desktop Client and then start it again with elevated privileges, i.e. instead of mere launching it, open the options by right-clicking and choose "Run as administrator".