Even with a patched download, you may encounter problems. Here is the troubleshooting matrix.

The patched version of the Canon EOS Digital Info SDK 3.5 is a modified version of the software that has been updated to fix bugs and improve performance. To download the patched version, follow these steps:

Canon EOS DIGITAL Info (SDK 3.5) at SourceForge . Developer Homepage: Canon EOS DIGITAL Info Project. Key Features of the SDK 3.5 Version

The official Canon SDK (EDSDK) is intended for developers and can be obtained through the Canon Developer Programme Risk of "Patched" Files:

Developers often release "subversions" of this tool tailored to different Canon camera generations based on the SDK version they use: