+/*\r
+ Environment block is of the form:\r
+\r
+ KEY1=VALUE1 NULL\r
+ KEY2=VALUE2 NULL\r
+ NULL\r
+\r
+ A single variable KEY=VALUE has length 15:\r
+\r
+ KEY=VALUE (13) NULL (1)\r
+ NULL (1)\r
+\r
+ Environment variable names are case-insensitive!\r
+*/\r
+\r