*.do files not opening in my IE7

I have written a struts application. When i open the application in my IE7 browser, it doesn't open the .do files, instead IE7 displayes the "FIND SAVE or CA开发者_如何学编程NCEL" dialog box.

Its like IE7 doesn't recognise the format. But it works well with Firefox.

Could anyone clarify why this happens with IE7 ?

It might have something to do with the server, not IE (got bitten by a similar situation). Is it possible that your server isn't sending the correct content type with the response?

Your response should have a header like Content-Type: text/html or similar. Are you sending back HTML content or something else?