The result was redirect to Proprietary software. Non-admin closure. JUJUTACULAR | TALK 15:35, 5 October 2009 (UTC)[reply]
The article is original research. 'Closed source software' is the same as 'Proprietary software'. Verification of claims was requested 18 months ago, but no refs were provided. Lester 23:22, 28 September 2009 (UTC)[reply]