Clean Disk 2003 5.1.1 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The software lies within System Utilities, more precisely System Optimization.
The actual developer of the program is AE Software Technologies. We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software. The Clean Disk 2003 installer is commonly called cd2k3.exe. The most popular versions of the tool are 5.1 and 5.0.
From the developer:
This program can help you maintain your system at its peak performance by removing unnecessary files from your computer (such as leftover installation programs), resolving DLLs problems, resolving system registry errors, and fixing any other things that can make system slower and unstable.
You may want to check out more software, such as Clean Disk Security, XP Disk Cleaner or Registry Cleaner Flash, which might be related to Clean Disk 2003.
System Optimization
File Managers