You need to install these tools and utilities to work with:
- Sysinternals Suite: available from: http://sysinternals.com/
- OllyDbg: available from: http://ollydbg.de/
- IDA Pro (freeware): available from: http://www.hex-rays.com/idapro/
- PEiD: available from: http://www.peid.info/
- Several packer and unpacker around if require.
Get ready for the next step!
Have fun!