That is, run RuntimeLibraries!DAZDzCreateExPFiles-v4.bat when you install an ExP morph expansion. If you installed manually you won't have the desktop shortcut. If you are using the Bitrock (executable) installers then you may well get an error about the pzs link file - that just added a link to the Daz store to the Poser help menu (I think), and doesn't matter - however the old installers really are old so it's a good idea to replace them - for simplicity with the Install manager though manual install of the zips is fine if you know what you are doing. Do make sure you are not placing the content in the application folder, though.