You can find the free version, often listed as having a 5.2 MB installer, on sites like Soft112 .
Based on your search for "Download Device Doctor Pro 630 Download Device Doctor Pro 630 zip
The version you are referencing appears to be Device Doctor 5.5.630.0, often listed as a Windows executable ( .exe ) bundle, rather than a .zip archive, available for download here . You can find the free version, often listed as having a 5
It is a Windows application that scans your hardware for outdated drivers and locates new ones. You can find the free version