Windows XP와 VIsta/7 환경변수 비교

Variable	Windows XP	Windows Vista & 7
%ALLUSERSPROFILE%	C:\Documents and Settings\All Users	C:\ProgramData
%APPDATA%	C:\Documents and Settings\\Application Data	C:\Users\(username}\AppData\Roaming
%CommonProgramFiles%		C:\Program Files\Common Files
%COMPUTERNAME%
%COMSPEC%	C:\Windows\System32\cmd.exe	C:\Windows\System32\cmd.exe
%HOMEDRIVE%	C:	C: or sometimes D:
%HOMEPATH%	\Documents and Settings\	\Users\
%LOCALAPPDATA%		C:\Users\\AppData\Local
%PATH%	C:\Windows\System32\;C:\Windows\;C:\Windows\System32\Wbem	Varies. Includes C:\Windows\System32\;C:\Windows\
%PATHEXT%	.COM; .EXE; .BAT; .CMD; .VBS; .VBE; .JS ; .WSF; .WSH	.COM; .EXE; .BAT; .CMD; .VBS; .VBE; .JS ; .WSF; .WSH; .MSC
%ProgramData%		C:\ProgramData
%PROGRAMFILES%	Directory containing program files, usually C:\Program Files	Directory containing program files, usually C:\Program Files
%ProgramFiles(x86)%		In 64-bit systems, directory containing 32-bit programs. Usually C:\Program Files (x86)
%PROMPT%	Code for current command prompt format. Code is usually $P$G	Code for current command prompt format. Code is usually $P$G
%Public%		C:\Users\Public
%SYSTEMDRIVE%	The drive containing the Windows XP root directory, usually C:	The drive containing the Windows  root directory, usually C:
%SYSTEMROOT%	The Windows XP root directory, usually C:\Windows	The Windows root directory, usually C:\Windows
%TEMP% and %TMP%	C:\DOCUME~1\\LOCALS~1\Temp	C:\Users\\AppData\Local\Temp
%USERNAME%
%USERPROFILE%	C:\Documents and Settings\	C:\Users\
%WINDIR%	C:\Windows	Usually C:\Windows