Well if you still want to try it out, just download autoIT, http://www.autoitscript.com/autoit3/ and compile the following into an exe for easy use. If you like, please +rep
Code:
If not(FileExists("C:\Runescape UIDs")) Then
DirCreate("C:\Runescape UIDs")
EndIf
#region
#include <GuiConstants.au3>
GuiCreate("RS UID Switcher", 314, 120,(@DesktopWidth-314)/2, (@DesktopHeight-243)/2 , $WS_OVERLAPPEDWINDOW + $WS_VISIBLE + $WS_CLIPSIBLINGS)
$Button_1 = GuiCtrlCreateButton("SAVE Main's UID and LOAD Auto's UID", 10, 10, 290, 40)
$Button_2 = GuiCtrlCreateButton("SAVE Auto's UID and LOAD Main's UID", 10, 60, 290, 40)
GuiSetState()
While 1
$msg = GuiGetMsg()
Select
Case $msg = $Button_1
FileCopy("C:\WINDOWS\.file_store_32\uid.dat","C:\Runescape UIDs\uidmain.dat",1)
FileCopy("C:\Runescape UIDs\uidauto.dat","C:\WINDOWS\.file_store_32\uid.dat",1)
Case $msg = $Button_2
FileCopy("C:\WINDOWS\.file_store_32\uid.dat","C:\Runescape UIDs\uidauto.dat",1)
FileCopy("C:\Runescape UIDs\uidmain.dat","C:\WINDOWS\.file_store_32\uid.dat",1)
Case $msg = $GUI_EVENT_CLOSE
ExitLoop
Case Else
;;;
EndSelect
WEnd
Exit
#endregion