Zero issues running Device manager or configuration programs on windows 11. Not an endorsement for windows 11, but they do work fine

808v6, 818.3, G65, G61RSL, G91DH, G08, G98DH, 500v3, 504, 218-LPS, 218, 210, MS200
8000uSE, 5200SE, 5200HSE, DSP5200 (nonSL~fully rebuilt w/ Excel tweeters), DSP3300x2, DSW.2
HD621, Pair of Revivers, AC12