Searching for is a dangerous path. The file may contain malware, will not perform reliably, and disrespects the work of Steinberg’s developers.
The mention of "32/64-bit" in the file description highlights a pivotal era in computing. During this time, producers were migrating from 32-bit systems (which limited RAM usage to about 4GB) to 64-bit systems. Cubase 5.1.2 was one of the early DAWs to offer a VST Bridge
If you are looking for a reliable and modern DAW, Steinberg offers several current options: Cubase 32bit vs 64bit - Steinberg Forums
Third-party .rar files from unofficial sources are common vectors for trojans, ransomware, and miners that can compromise your personal data or system performance.