該如何把單項軟體的登錄碼備份起來呢?

常常看到很多大大提供登錄碼...如下:

===========================================
REGEDIT4
[HKEY_LOCAL_MACHINE\SOFTWARE\Super Rabbit\MagicSet]
"StopUndo"=dword:00000000
"Version"=" 5.4"
"Language"="Auto"
"Program"="Super Rabbit Magic Set 5.4"
"BackupDate"=""
"New"="1"
"WindowsState"=dword:00000001
"NotAutoUpdate"=dword:00000000
"Registered Name"="softking1234"
"Registered Code"="MSTWC-JGCSRSTHRJK"
"NickName"="Supper Rabbit"
"Disable SafeMode"=dword:00000000
"AutoExit"=dword:00000000
"AutoRunMagicSet"=dword:00000001
"Month"=dword:0000000b
"SRRestore"=dword:00000000
"OtherLan"=dword:00000000
"Ani"="Yes"
"CleanMode"="00"


[HKEY_LOCAL_MACHINE\SOFTWARE\Super Rabbit\RegOpt]
"Registered Name"="softking1234"
"Registered Code"="MSTWC-JGCSRSTHRJK"
============================================

或是提供副檔名REG的註冊檔.不知道該用什麼樣滴程式
才有辦法把單項軟體的登錄碼抽出備份起來呢?懇請各位大大
不吝賜教.小弟這兒先謝過嚕..^^