REGEDIT4

[HKEY_CLASSES_ROOT\.dll]
@="dllfile"

[HKEY_CLASSES_ROOT\dllfile\Shell\Register\command]
@="regsvr32.exe %1" 

[HKEY_CLASSES_ROOT\dllfile\Shell\UnRegister\command]
@="regsvr32.exe /u %1" 

[HKEY_CLASSES_ROOT\.ocx]
@="ocxfile"

[HKEY_CLASSES_ROOT\ocxfile\Shell\Register\command]
@="regsvr32.exe %1" 

[HKEY_CLASSES_ROOT\ocxfile\Shell\UnRegister\command]
@="regsvr32.exe /u %1"