The Book

ALLUSERSPROFILE=C:\ProgramData
APPDATA=C:\Users\"username"\AppData\Roaming
CommonProgramFiles=C:\Program Files\Common Files
ComSpec=C:\Windows\system32\cmd.exe
ProgramData=C:\ProgramData
ProgramFiles=C:\Program Files
PUBLIC=C:\Users\Public
SESSIONNAME=Console
SystemDrive=C:
SystemRoot=C:\Windows

HOMEDRIVE=C:
HOMEPATH=\Users\"username"
LOCALAPPDATA=C:\Users\"username"\AppData\Local
USERNAME="username"
USERPROFILE=C:\Users\"username"
windir=C:\Windows

COMPUTERNAME=
LOGONSERVER=
PROCESSOR_ARCHITECTURE=
PROCESSOR_IDENTIFIER=
PROCESSOR_LEVEL=
PROCESSOR_REVISION=

TEMP=
TMP=
USERDNSDOMAIN=
USERDOMAIN=