Sometimes antivirus programs flag the PETKA keygen or the activation service as a false positive. It is common practice to exclude the PETKA folder from scans.
The Petka series (Петька in Cyrillic) was manufactured from the mid-1980s to the early 1990s by several state-owned enterprises within the Comecon (Council for Mutual Economic Assistance) bloc. Designed primarily for light industrial automation—textile looms, printing presses, and small-scale chemical batch processors—the Petka 85, 86, and 88 represented the third generation of programmable logic controllers (PLCs) in that ecosystem. petka 85 86 88 activation thread requirement
Several Russian forums mention a tool called “PetkaActivator.exe” (Windows 95 compatible) that claims to generate thread codes via LPT. However, verified working copies are extremely rare, and most are malware. Sometimes antivirus programs flag the PETKA keygen or