That has nothing to do with open source. Winamp is not actively developed, but I can still use it as long as I have the binary. So by your definition, is Winamp

That has nothing to do with open source. Winamp is not actively developed, but I can still use it as long as I have the binary. So by your definition, is Winamp dead or alive? The point is - a software is considered dead when there is nobody to maintain it, if maintenance is required. Licensing has no bearing on demise of software.