Infiltrator Disassembler v1.0 by Gerald Hinder - This is a neat Windows program that can disassembler Commodore 64 .prg files and VICE Snapshots so you can root around in memory and find graphics or music or whatever else you might be interested in.

A nice review of this program can be found at the c64brain.com website.

This program disasembles 6502/6510 binary machine code files into mnemonic assembly language text format. Unlike most disassemblers there are several formatting options and an "autocomment" feature that will append a comment to any line that addresses a known hardware device register on a particular platform, the Commodore 64 is the only platform currently supported