problem with sandcastle generated .chm help file?

i have generated a help fi开发者_高级运维le for my project using sandcastle,a .chm file. but the content can only seen when i open it in my machine. i have gave that file to several friends none of them can see the content of the file. what is the wrong?? how can i resolve it?? any problem with my configurations?? please help me guys!!!

regards, rangana.

The file is probably marked as "From the Internet" and therefore seen as possibly dangerous by the internet explorer trying to display the file.

Right-Click the file, and click the Unblock button on the General property page.