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Anonymous
August 10, 2022
Question

PDF Previw Handler breaks with every Edge update

  • August 10, 2022
  • 1 reply
  • 1117 views

I've noticed that every time one of my users gets an update for Microsoft Edge, it breaks the PDF Preview functionality through Adobe Reader. It happens for multiple users including myself. Has anyone else experienced this at all? Trying to figure out why this is happening, and if it's isolated to our environment.

 

I've figured out that I can fix it by unregistering and re-registering the PDF Preview Handler DLL by running the following 2 commands, but I have to fix it every time Edge updates (which is pretty often).

 

regsvr32 /s /u "C:\Program Files\Adobe\Acrobat DC\Acrobat\PDFPrevHndlr.dll"

regsvr32 /s "C:\Program Files\Adobe\Acrobat DC\Acrobat\PDFPrevHndlr.dll"

    1 reply

    default5u7hbs4o2ecu
    default5u7hbs4o2ecu
    Participant
    April 10, 2026

    Amazing.  This is the only “fix” that worked with my Microsoft 365 Classic Outlook preview working or installed error.  The other typical recommended fixes making sure Outlook trusted was good, repairing Adobe, uninstalling/re-installing Microsoft 365 or Adobe NEVER fixed the problem.  Only these simple registry commands worked instantly!

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