Just make a archive (say hide.rar) of the files you want to hide.

Find a image file to hide it say show.jpg

Open command prompt and type :

copy /b show.jpg + hide.rar new.jpg

Now new.jpg is you file. Open it in any image viewer (even Photoshop opens the new.jpg file correctly) and you can also upload it to imageshack or any other image hosts.

Now get back the hidden files, open the image file in Winrar or say 7-zip and you see your hidden files.

You can try with different image formats also. JPG, PNG works and I have tested on them.

^ Thanks for the trick

This is how a virus is made in pictures....

And thanks for the trick

I made an app to do this a while ago. It also works with gif, bmp, and a bunch of others.

thankyou MANIKANT.S.GUPTA

OMG!!!

WOW

GR888888888888888888!

but does it still create a thumbnail?

Yes it does.

nice trick. will use it.. i think it is better than changin estention