9 9 9 , ▁VM ware ▁introduced ▁the ▁first ▁x 8 6 ▁virtual ization ▁product , ▁VM ware ▁Virtual ▁Platform , ▁based ▁on ▁earlier ▁research ▁by ▁its ▁found ers ▁at ▁Stan ford ▁University . ▁ ▁VM ware ▁Virtual ▁Platform ▁was ▁based ▁on ▁software ▁em ulation ▁with ▁Gu est / Host ▁OS ▁design ▁that ▁required ▁all ▁Gu est ▁environments ▁be ▁stored ▁as ▁files ▁under ▁the ▁host ▁OS ▁filesystem . ▁ ▁Year ▁ 2 0 0 5 ▁ ▁Free ▁desktop ▁virtual ization ▁ ▁Pre viously , ▁a ▁substantial ▁lic ens ing ▁fee ▁was ▁required ▁for ▁the ▁use ▁of ▁VM ware ' s ▁Work station ▁product . ▁ ▁VM ware ▁decided ▁to ▁provide ▁high ▁quality ▁virtual ization ▁technology ▁to ▁everyone ▁for ▁free . ▁ ▁They ▁omitted ▁the ▁ability ▁to ▁create ▁virtual ▁machines ▁and ▁did ▁not ▁dist ribute ▁the ▁acceleration ▁tools ▁that ▁come ▁with ▁VM ware ▁work station . ▁ ▁This ▁early ▁corpor ate ▁play ▁to ▁encou rage ▁consumer ▁applications ▁of ▁virtual ization ▁went ▁largely ▁un not iced . ▁ ▁Year ▁ 2 0 0 6 ▁ ▁This ▁year ▁virtual ization ▁has ▁a ▁new ▁level ▁of ▁playing ▁field ▁in ▁application ▁virtual ization ▁and ▁application ▁streaming . ▁ ▁Year ▁ 2 0 0 8 ▁VM ware ▁releases ▁VM ware ▁Work station ▁ 6 . 5 ▁beta , ▁the ▁first ▁program ▁for ▁Windows ▁and ▁Linux ▁to ▁enable ▁Direct X ▁ 9 ▁acceler ated ▁graphics ▁on ▁Windows ▁XP ▁guests ▁. ▁ ▁Over view ▁ ▁As ▁an ▁over view , ▁there ▁are ▁three ▁levels ▁of ▁virtual ization : ▁ ▁At ▁the