timezone initialization crash fix, when specific TZ ID is not defined in Windows registry
timezone initialization crash fix, when specific TZ ID is not defined in Windows registry

git-tfs-id: [http://falcon:8080/tfs/Projects]$/Phalanger/Main;C2955

kendallb/Phalanger,diddledan/Phalanger,kendallb/Phalanger,kendallb/Phalanger,diddledan/Phalanger,kendallb/Phalanger,DEVSENSE/Phalanger,diddledan/Phalanger,kendallb/Phalanger,DEVSENSE/Phalanger,DEVSENSE/Phalanger,diddledan/Phalanger,diddledan/Phalanger,DEVSENSE/Phalanger,DEVSENSE/Phalanger,kendallb/Phalanger,DEVSENSE/Phalanger