Dual-Licensing Situation

[Ralf Friedl]

AR wrote:
> Scenario 1:
> I am the copyright holder of my code.
> I developed it using the $1000 proprietary license of dual-licensed code.
> I release it under the GPL.
> A company approaches me that wants me to dual-license it for
> $5000 to include in their non-free code.
> My code is worth $4000, and I can live off that for a while to improve 
> and GPL-release my code.
The proprietary license that you bought for $1000 probably doesn't allow 
you to release derivative works under the GPL.

Regards
Ralf Friedl