Oh, I never install games in Program Files. There is always a root folder /Games. There is a separate SSD named Installs where I put my /Games. I run all my games in Win10, Win7 and Linux Mint from the same installation location; only TSW and SWL have a problem, and only in Win7. I did try creating new TSW and SWL installations with a /Games on my Windows 7 drive; the patcher froze and could not even download/create all the folders.
The issue seems unique to ClientPatcher.exe for TSW and SWL. ConanPatcher.exe (Age of Conan) works fine.