I was able to solve some settings for WLM 2009 on Windows 10 20H2, like enabling the icon in the system tray, the WLM taskbar features and change the ad window to the WLM 2009 image, but I have another “bug”: After these settings, WLM 2009 starts as if it were in full screen mode, causing the focus assistant to activate automatically and notifications for some applications are muted.
Are there any boot or configuration parameters in Windows 10 so that msnmsgr.exe does not start as if it were in full screen?