Open source / freeware application for Windows 7 to create ISO images [closed]

"The program you could be looking for is ImgBurn.

From their home page:

ImgBurn is a lightweight CD / DVD / HD
DVD / Blu-ray burning application that
everyone should have in their toolkit!

It has several 'Modes', each one for
performing a different task:


Read - Read a disc to an image file
Build - Create an image file from files on your computer or network - or you can write the files directly to a disc
Write - Write an image file to a disc
Verify - Check a disc is 100% readable. Optionally, you can also
have ImgBurn compare it against a
given image file to ensure the actual
data is correct
Discovery - Put your drive / media to the test! Used in combination
with DVDInfoPro, you can check the
quality of the burns your drive is
producing"

"CDBurnerXP is also an excellent ISO creator as well as a complete CD/DVD burning application.

CDBurnerXP is a free application to burn CDs and DVDs, including
Blu-Ray and HD-DVDs. It also includes the feature to burn and create
ISOs, as well as a multilanguage interface. Everyone, even companies,
can use it for free. It does not include adware or similar malicious
components."

I think the Unix tools for Windows contains mkisofs

ISO Recorder is simple choice that allows you to do this from the Explorer context menu.