There is nothing we, or you can do about it! Here is a cut and paste of what Canon say about your hardware:
Unfortunately your device is no longer supported under the selected operating system. Please feel free to view our current range of available products.
For non-supported cameras, images may still be transferred by inserting your memory card directly into your computer/device or via a memory card reader.
This product is compatible with the following operating systems -
macOS 10.13 (High Sierra)
Windows XP (32-bit)
Windows XP (64-bit)
Windows Me (32-bit)
Windows 2000 (32-bit)
Mac OS X 10.5 (Leopard)
So, select the 64 bit XP version, and run it in compatibility mode (right click over the program and select "Troubleshoot Compatibility")
Hope this helps!