Roshal does something radical: he designs a new compression algorithm from scratch. Not a tweak. Not a fork. A true original. He calls it — Roshal ARchive .
That asymmetry is deliberate. It turns WinRAR into a gateway drug: you can open RAR files with anything, but if you want to make one with full solid mode and recovery records, you need the real thing. Or you just keep clicking the nag screen. Rarlab doesn’t mind either way. In many countries—especially Germany, Russia, and Brazil—the WinRAR nag screen has transcended software and become a cultural artifact.
Why? Because the nag screen is the marketing. Every day, millions of users see that reminder. They tell their colleagues: “Just click ‘Close’ – it still works.” That word of mouth, spanning three decades, has made WinRAR one of the most recognized software brands on Earth without a single Super Bowl ad or billboard. rarlab
This is the story of how two engineers from a small town built an accidental empire on shareware, stubbornness, and one of the most efficient compression algorithms ever written. The year is 1993. The internet is still a dial-up screech. Hard drives are measured in megabytes. In Chelyabinsk, Russia—a city better known for tanks and heavy industry—a software engineer named Eugene Roshal begins writing a file archiver.
Archivers already exist. PKZIP is the king. ARC is the old guard. But Roshal sees inefficiencies. ZIP’s recovery record is weak. Splitting archives across floppy disks is a headache. And the compression ratio? Acceptable, but not optimal. Roshal does something radical: he designs a new
If you have ever downloaded a file from the internet, you have touched Rarlab’s DNA. You might not know its founders. You might not know its office address. But you know the three letters it gave the world: .
WinRAR is . It has always been shareware. After a 40-day trial period, a nag screen appears, reminding you to buy a license. That is it. No crippling. No data deletion. No cloud subscription. Just a gentle, polite, infinitely dismissible window. A true original
By allowing anyone (including competitors) to include UnRAR in their software, Rarlab made .RAR a universal format. Every competing archiver—7-Zip, PeaZip, even macOS’s The Unarchiver—can extract RAR files. But only WinRAR can create them (outside of third-party reverse-engineered tools, which are legally shaky).