Runtime Error! whenever I try to open an online pdf file with Internet Explorer

Strange, whenever I try to open an online pdf file with Internet Explorer I receive:

"Runtime Error!

Program C:\Program Files\Internet Explorer\iexplore.exe

This application has requested the Runtime to terminate it in an
unusual way.
Please contact the application's support team for more information."

On Windows Vista I managed to resolve the problem by repairing Adobe Reader from that application's menu. I thought that the problem was due to HP printer that I have and its software being somehow incompatible with Adobe's software. I was happy that, after removing as much of HP software and add-ons as it was possible and disallowing it to update, and repairing Adobe Reader, I was able to view online pdfs.

Not on Windows 7 however.

I would appreciate, if anyone could comment on this issue and suggest any possible causes or solutions.


Question Info

Last updated December 7, 2018 Views 12,771 Applies to:



I would like to know, which version of Adobe reader are you using?


Try the suggestions mentioned in the following Adobe article to fix the issue:

"Runtime error" | Acrobat, Reader 9


ImportantThe above article contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base: 


How to back up and restore the registry in Windows



Gaurav Prakash - Microsoft Support
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