Simplify env variable Add some TODO comments.
Simplify env variable
Add some TODO comments.

int19h/PTVS,int19h/PTVS,Microsoft/PTVS,zooba/PTVS,huguesv/PTVS,zooba/PTVS,zooba/PTVS,Microsoft/PTVS,zooba/PTVS,huguesv/PTVS,Microsoft/PTVS,huguesv/PTVS,int19h/PTVS,huguesv/PTVS,int19h/PTVS,int19h/PTVS,huguesv/PTVS,Microsoft/PTVS,zooba/PTVS,huguesv/PTVS,int19h/PTVS,zooba/PTVS,Microsoft/PTVS,Microsoft/PTVS