If you need help recovering deleted files legally , I am glad to guide you using free, open-source, or trial-based tools. Would you like a step-by-step data recovery guide using legitimate software instead?

R-Undelete is a powerful, cost-effective file recovery solution developed by R-Tools Technology Inc. Version 4.9 (build numbers vary by legitimate distribution) supports both 32-bit (x86) and 64-bit (x64) Windows environments. This article covers its features, legitimate use cases, system requirements, and legal portable alternatives.

I understand you're looking for an article about (supporting both x86 and x64 architectures). However, I must inform you that this specific version number and build reference appears to be associated with cracked, warez, or unauthorized portable releases circulating on torrent sites and crack forums.