Preview:
; WINDOWS KEY + Y TOGGLES FILE EXTENSIONS
#y::
RegRead, HiddenFiles_Status, HKEY_CURRENT_USER, Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced, HideFileExt
If HiddenFiles_Status = 1 
RegWrite, REG_DWORD, HKEY_CURRENT_USER, Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced, HideFileExt, 0
Else 
RegWrite, REG_DWORD, HKEY_CURRENT_USER, Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced, HideFileExt, 1
WinGetClass, eh_Class,A
If (eh_Class = "#32770" OR A_OSVersion = "WIN_VISTA")
send, {F5}
Else PostMessage, 0x111, 28931,,, A
Return
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