Editing/Replacing File in a .img file (NTFS format)

[brahman]

Hi,

I have a .ca_ file, which contains a .img file where I need to update a driver.

I have totaliso, iso, and img extensions installed.

When I extract and then try to open the .img file with TC I get an "error in packed file" message. 7z can open the file without a problem.

If I change the .img extension to .iso I get no error message but the content is shown as empty, if I change to .ima same results as .img.

The file seems to be a Microsoft .img file in NTFS file system. The first few characters of the file as shown in my HexEditor HxD are "ëR.NTFS".

Could anybody give me some hints how I can go about replacing a driver in that file. I thing MagicIso could do it, but I would like to do it without paying.

Thanks.