- You develop a 64-bit application that hosts a WebBrowser control.
- Internet Explorer 11 or Internet Explorer 10 and Adobe Reader are installed on the computer.
- You try to open a PDF document by using the WebBrowser control in the application.
When the WebBrowser control detects a 32-bit ActiveX control, it tries to load the control by using Internet Explorer in Enhanced Protected Mode.
Update informationTo resolve this issue, install the most recent cumulative security update for Internet Explorer. To do this, go to Microsoft Update.
For technical information about the most recent cumulative security update for Internet Explorer, go to the following Microsoft website:Note This update was first included in security update 2969262.