While the triad's influence on the Hong Kong film industry was growing notorious during the 1980s, Charles decided to form his own production company that would provide a safe refuge.

Following its formation, the company went on to become one of Hong Kong's most successful film studios alongside Golden Harvest.

1980s saw the surging demand of home entertainment in Hong Kong, thanks to the introduction of videotapes / laser discs, their respective VCR / LD players, as well as the growing popularity of Karaoke.

In 1992 the Heung brothers ended their partnership and Charles renamed Win's Movie Production (Hong Kong) Co Ltd (永盛電影製作 (香港) 有限公司) into Win's Entertainment (Hong Kong) Co Ltd. (永盛娛樂製作 (香港) 有限公司) Star Entertainment was eventually sold to China Star Group in 1996, while the founder of Winson (Sonny Chan) moved on to resurrect its label, engaging in distribution of VCD/DVD of old Cantonese films/opera as well as making a couple of modern films up to present time.

In 2009, the company has been returned and renamed as "Win's Movie and Television Production" (永盛影視製作有限公司), replacing One Hundred Years of Film.