Synonyms of Exclusive;
Absolute, Sole, Whole, Full, Unique, Entire, Only, Single, Undivided.
"Did you steal my wallet?" - "Absolutly not"
"Are you the sole owner of this Dalí painting?" - "Yes"
"Are you the only one with the whole Beatles record collection" - "Yes i am"
"Is this bottle full?" - "Yes"
"Is this a unique case, have you seen anything like it before?" - "No"
"Are you sure this is the entire sum of cash" - "Yes"
"Is there a single shread of evidence that he did it?" - "No"
The word Exclusive is and absolute word. If asked any of those questions, how can there be an exception? It just dosen't ad up. You can't redefine "Absolutly Not!". You can't go back and say, "when i said absolutly not, you should've understod that i ment maybe".
And since we've already defined platform as a hardware that computes software. Your logic can not correlate. There can't be an absolute software on multiple platforms that still remains undivided. The english language is proving you wrong.