[ShadowAce]

I read somewhere that if your software uses freeware, it can be argued that yours becomes open.

I am absolutely NOT an expert on licenses, and I know there are quite a few licenses out there.

However, I think that may only apply to fringe cases. I've never heard of it happening in regard to any open source license.

[kosciusko51]

I’ve seen some licenses that have that restriction, unless you buy the commercial version or just link to the .dll.

[Openurmind]

https://opensource.org/licenses