File extension isz

Name: Archive Files

Popularity: 1

Open With: UltraISO

What is this isz file?

Compressed disk image file format. Developed by EZB Systems (UltraISO). Could be password protected and using compression (saves you more disk space).

Name: Disk Image Files

Popularity: 6

Open With: Daemon Tools Pro

What is this isz file?

Compressed disk image format (a.k.a. "ISO Zipped") developed by ESB Systems; similar to a regular .ISO file, but compressed to save disk space; may also be password-protected and encrypted using AES256 encryption. Large ISZ files can be split into segments and spanned across multiple disks.