This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Trying to open a PDF attachment, get the message msoxmled.exe - system error, AppVisvSubsystem64.dll is missing. Adobe Reader works otherwise.

  • 2 ŋuɖoɖowo
  • 4 masɔmasɔ sia le wosi
  • 1 view
  • Nuɖoɖo mlɔetɔ skharrisla

more options

When I get a PDF attachment, and click to open it, I get the message msoxmled.exe - system error, AppVisvSubsystem64.dll is missing. If I save the attachment to the desktop, and then double click on it, the PDF opens correctly in Adobe Reader. I only see this message when opening the attachment in Thunderbird. Thanks for any help

When I get a PDF attachment, and click to open it, I get the message msoxmled.exe - system error, AppVisvSubsystem64.dll is missing. If I save the attachment to the desktop, and then double click on it, the PDF opens correctly in Adobe Reader. I only see this message when opening the attachment in Thunderbird. Thanks for any help

Ŋuɖoɖo si wotia

well that file with the error is part of Microsoft office.

On the toolbar > Options > attachments > incoming and delete whatever is listed there for PDF files.

Xle ŋuɖoɖo sia le goya me 👍 3

All Replies (2)

more options

Ɖɔɖɔɖo si wotia

well that file with the error is part of Microsoft office.

On the toolbar > Options > attachments > incoming and delete whatever is listed there for PDF files.

more options

It worked; thanks so much!