Fixes VSTestHost installation for Express editions.
Fixes VSTestHost installation for Express editions.

Microsoft/PTVS,christer155/PTVS,gilbertw/PTVS,alanch-ms/PTVS,DEVSENSE/PTVS,Habatchii/PTVS,crwilcox/PTVS,gilbertw/PTVS,fjxhkj/PTVS,zooba/PTVS,jkorell/PTVS,gomiero/PTVS,mlorbetske/PTVS,xNUTs/PTVS,xNUTs/PTVS,crwilcox/PTVS,fjxhkj/PTVS,ChinaQuants/PTVS,msunardi/PTVS,denfromufa/PTVS,zooba/PTVS,denfromufa/PTVS,alanch-ms/PTVS,ChinaQuants/PTVS,huguesv/PTVS,denfromufa/PTVS,MetSystem/PTVS,MetSystem/PTVS,gomiero/PTVS,gomiero/PTVS,christer155/PTVS,juanyaw/PTVS,modulexcite/PTVS,Microsoft/PTVS,int19h/PTVS,DEVSENSE/PTVS,jkorell/PTVS,huguesv/PTVS,fivejjs/PTVS,xNUTs/PTVS,crwilcox/PTVS,modulexcite/PTVS,DinoV/PTVS,dut3062796s/PTVS,ChinaQuants/PTVS,xNUTs/PTVS,christer155/PTVS,Microsoft/PTVS,xNUTs/PTVS,bolabola/PTVS,DEVSENSE/PTVS,jkorell/PTVS,MetSystem/PTVS,mlorbetske/PTVS,christer155/PTVS,juanyaw/PTVS,DinoV/PTVS,crwilcox/PTVS,gilbertw/PTVS,zooba/PTVS,ChinaQuants/PTVS,gomiero/PTVS,MetSystem/PTVS,fjxhkj/PTVS,fivejjs/PTVS,jkorell/PTVS,dut3062796s/PTVS,fivejjs/PTVS,fivejjs/PTVS,int19h/PTVS,Habatchii/PTVS,bolabola/PTVS,jkorell/PTVS,int19h/PTVS,modulexcite/PTVS,modulexcite/PTVS,gomiero/PTVS,fjxhkj/PTVS,DEVSENSE/PTVS,crwilcox/PTVS,msunardi/PTVS,xNUTs/PTVS,DEVSENSE/PTVS,msunardi/PTVS,denfromufa/PTVS,DinoV/PTVS,zooba/PTVS,gilbertw/PTVS,juanyaw/PTVS,huguesv/PTVS,DinoV/PTVS,Microsoft/PTVS,msunardi/PTVS,alanch-ms/PTVS,juanyaw/PTVS,int19h/PTVS,huguesv/PTVS,alanch-ms/PTVS,Habatchii/PTVS,DinoV/PTVS,huguesv/PTVS,fivejjs/PTVS,alanch-ms/PTVS,DEVSENSE/PTVS,dut3062796s/PTVS,zooba/PTVS,Microsoft/PTVS,dut3062796s/PTVS,DinoV/PTVS,denfromufa/PTVS,fjxhkj/PTVS,gomiero/PTVS,modulexcite/PTVS,mlorbetske/PTVS,denfromufa/PTVS,dut3062796s/PTVS,christer155/PTVS,Habatchii/PTVS,alanch-ms/PTVS,int19h/PTVS,bolabola/PTVS,int19h/PTVS,MetSystem/PTVS,christer155/PTVS,mlorbetske/PTVS,juanyaw/PTVS,crwilcox/PTVS,gilbertw/PTVS,modulexcite/PTVS,jkorell/PTVS,huguesv/PTVS,fivejjs/PTVS,bolabola/PTVS,dut3062796s/PTVS,Habatchii/PTVS,ChinaQuants/PTVS,fjxhkj/PTVS,mlorbetske/PTVS,gilbertw/PTVS,ChinaQuants/PTVS,bolabola/PTVS,juanyaw/PTVS,msunardi/PTVS,bolabola/PTVS,Microsoft/PTVS,msunardi/PTVS,Habatchii/PTVS,zooba/PTVS,mlorbetske/PTVS,MetSystem/PTVS