When you use Microsoft Expression Media to try to open an Expression Media Notepad (.ivn) file, you experience the following symptoms:
- A delay occurs before the Expression Media Notepad window appears.
- The image preview is missing from the Expression Media Notepad window.
- The comments are missing notes in the Expression Media Notepad window.
Typically, this behavior occurs when the computer that is running Expression Media is behind a Microsoft Internet Security and Acceleration (ISA) firewall. In this case, the ISA server may block the document-type definition for the .ivn files.
To resolve this behavior, install the ISA client on the computer that is running Expression Media.