Version 1.9 was part of the software's peak popularity era, known for its ability to bypass certain copy protections like Википедия Virtual Drives:
It can create up to 31 virtual drives, allowing users to run disc images at speeds significantly faster than a physical drive. A.C.I.D. (Alcohol Cloaking Initiative for DRM): Alcohol 120 1.9 7.6221 Serial Number
The search for a serial number for Alcohol 120% version 1.9.7.6221 Version 1
typically points toward legacy versions of this disk imaging software. Alcohol 120% is a proprietary utility emulating and burning optical discs (CDs, DVDs, and Blu-rays). Historical Context and Functionality Alcohol 120 1.9 7.6221 Serial Number
«Alcohol Cloaking Initiative for DRM» (A.C.I.D), который скрывает эмулированные диски от SecuROM 7 и SafeDisc 4. Википедия