It looks like you're referring to a (often part of the Sound Blaster Live! 24-bit series) and a "Windows 7 32-bit ISO" driver package.
However, there is for this driver from Creative Labs. ISO files are typically for full operating systems or discs. What you likely need is an executable driver setup ( .exe ) or manual .inf files. Creative Labs Sb0200 Driver Windows 7 32-bit Iso --NEW