Fixing the Dragon “Hook Error”
Adobe® Acrobat Reader X has been causing Dragon® Medical 10.1 and 11 to display the following error message:
“COM returned an unexpected error code: Details are HOOKERR_NONOTIFYWINDOW”
This message is caused by a conflict with Acrobat Reader X. To fix this issue. you have two options:
1. Uninstall Adobe Acrobat Reader X
2. Disable Protected Mode
If you must use Adobe Acrobat Reader X, then follow the steps below to disable Protected Mode:
- Start Adobe Acrobat Reader X
- Go to Edit > Preferences > General Tab
- Uncheck “Enable Protected Mode at startup”
This should fix the issue and prevent the error message from appearing again.
Verification Source: In-house testing