FAQ.How can I get all the environment variables from Windows?
Feedback.

Answer: Try this code:
Example:

declare function GetEnvironmentStrings Lib "kernel32" () as ptr
dim m as memoryBlock
dim n as integer

m=GetEnvironmentStrings()

n=0
do
  msgBox m.cstring(n)
  while m.byte(n)<>0
    n=n+1
  wend
  n=n+1
loop until m.byte(n)=0

Notes: The MBS Plugin has an EnvironmentMBS class for this.