I need to open a dmg file on my windows vista,but dont know the appropriate program that it opens with.........pls help.

Try renaming your .dmg with the .iso extension, it may be work. Else try to convert your dmg file with the disk utility and choose the iso format in output.

Otherwise, it should be noted that *.dmg is a Mac file. Renaming it to *.iso doesn’t usually work – but you can probably find a program that will convert one to the other properly.

Try asking the person who gave you the file to use *.zip instead, or if it is a program you downloaded, get the PC version.

A .dmg file is a Mac disk image file, akin to an .iso file for CD images.

Even if you can get it open, you’ll most likely need a Mac to make use of the contents. If it’s not Mac-specific, download the .zip file instead.

(If it’s the iPhone SDK, you don’t need it unless you’re a programmer, and it requires a Mac to run.)