متغیر های سیستمی از نوع Environment

Environment variables

Dim Env As String= "windir"
Environment.GetEnvironmentVariable(Env)

با قطعه کد زیر میتوانید کلیه متغیر های سیسمی را دربیاورید

Dim dictEntry As System.Collections.DictionaryEntry

For Each dictEntry In Environment.GetEnvironmentVariables()
     ListBox1.Items.Add("Key: " & dictEntry.Key.ToString() &
                                  "   Value:" & dictEntry.Value.ToString())
Next

***
Path
TEMP
SESSIONNAME
PATHEXT
USERDOMAIN
PROCESSOR_ARCHITECTURE
ProgramW6432
VS100COMNTOOLS
APPDATA
windir
LOCALAPPDATA
CommonProgramW6432
TMP
USERPROFILE
ProgramFiles
CommonProgramFiles(x86)
FP_NO_HOST_CHECK
HOMEPATH
COMPUTERNAME
ProgramData
PROCESSOR_ARCHITEW6432
USERNAME
NUMBER_OF_PROCESSORS
PROCESSOR_IDENTIFIER
SystemRoot
ComSpec
LOGONSERVER
ProgramFiles(x86)
VisualStudioDir
SystemDrive
CommonProgramFiles
PROCESSOR_LEVEL
PROCESSOR_REVISION
PSModulePath
ALLUSERSPROFILE
PUBLIC
TRACKER_ATTACHED
OS
HOMEDRIVE