There is a discussion of the Win 10 update issue on the Plex forum - PMS Closing immediately after launch - which includes links to download an older version of CompPkgSup.dll if you need it.Seems to be related to this:
Windows Media Foundation Bug in Cumulative update KB3216755 windows 10
This dll is causing problems with other media software - PowerDVD, DVB Viewer, Power Media Server and even Windows Media Player. Opening a folder containing MPEG2 files crashes dllhost/COM Surrogate. Even the .953 cumulative update of March 14th 2017 contains this problem - CompPkgSup.dll has been updated. The only way to fix my problem was to replace the new file with the version from the .693 build.
Over at the DVB Viewer forum, there are even more complaints.
TV Server Config's preview function doesn't use MP settings.Went to TV-Setup to check whether I can preview a channel..
This looks like a completely separate problem. Start a new thread please, and describe the source of these HTTP streams (eg. SAT>IP tuner, FritzBox, DVBViewer).Looked if the tvservice is running... it was not.
|[Action Required] MP 1.27 Pre Release thread||MediaPortal 1||0|
|[News] MediaPortal 1.26 Pre-Release ready for testing!||News and Announcements||0|
|[News] MediaPortal 1.25 Pre-Release ready for testing!||News and Announcements||0|
|1.24.0 1.25.0 pre : problem with build ?||1.24-1.26 Pre Release||89|
|[solved] MP1.24 Pre released crash in TV||General Support||12|
|T||TOP BAR disappears in MP 1.24 pre!! (also in 1.23)||General Support||31|
|[Action Required] MP 1.26 Pre Release thread||MediaPortal 1||309|
|[Action Required] MP 1.25 Pre Release thread||MediaPortal 1||515|
|[News] MediaPortal 1.24 Pre-Release ready for testing!||News and Announcements||0|
|How to disable a pre-configured plugin?||General||2|
|[Action Required] MP 1.24 Pre Release thread||MediaPortal 1||207|
|[News] MediaPortal 1.23 Pre-Release ready for testing!||News and Announcements||6|
|Problems with MP 1.23 Pre||My TVSeries||12|
|[Action Required] 1.23 Pre-Release thread||MediaPortal 1||276|
|S||Mediaportal 1.22 Pre-Release remote live-tv freezes MediaPortal||1.22 Pre Release||0|
|D||Mediaportal 1.22 Pre-Release didnt start up||1.22 Pre Release||8|
|O||[News] MediaPortal 1.22 Pre-Release ready for testing!||News and Announcements||2|
|[Action Required] 1.22 Pre-Release thread||MediaPortal 1||210|
|A||1.20 issues still exists in 1.21 pre-release||Watch / Listen Media||13|
|Mp 1.21 pre - probleme livetv und videos||Allgemeines Supportforum||5|
|O||[News] MediaPortal 1.21 Pre-Release ready for testing!||News and Announcements||6|
|D||Upgrade to MP2.2 pre release fails with failure to start service||2.2 Archive||32|
|T||MP2.2 Pre Release fails installation with not starting the MP2-service||2.2 Archive||4|
|[News] MediaPortal 2 - 2.2 Pre-Release||News and Announcements||0|
|MP2.2 Pre-Release Discussions||General||28|