Same thing here! I never would've learned English if it wasn't for GW BASIC and Windows 98 - certainly not in the crappy schools of the post-war Bosnia!
Twenty years later, I'm still writing way too much Basic code (VB6 legacy apps and some VB.NET). I do appreciate a lot of things about the syntax and wish C# had picked them (no semicolons and no case sensitivity).
:)
I started learning English as a kid to understand what was happening on the MS BASIC programs I could get on my computer by the time.