When you are reading or learning an Office CHM doc, you may want to write some notes for you or some comments for your staff. Printing out is not a good idea, because that is uneconomical.

Vole CHM Reviewer can add notes to Office CHM doc and never change it. It can add text, image, audio and video notes to each directory.

Vole CHM Reviewer imports Office CHM doc to make Vole Media CHM Media lib(.vmc), analyses the Office CHM doc and adds user notes to VMC. Vole CHM Review shows the original CHM content and use notes in parallel window and display text notes and multimedia notes synchronously. Vole CHM Review never changes the Office CHM doc in VMC, and you can export the original Office CHM doc at any time.

The software has friendly interface, supports docked window, 6 display styles, 1 timer assistant.