Microsoft Excel を読み取り専用で開く

[HKEY_CLASSES_ROOT\Excel.Sheet.8\shell\OpenAsReadOnly] 
@="読み取り専用で開く" 
Extended_Org="" 
 
[HKEY_CLASSES_ROOT\Excel.Sheet.8\shell\OpenAsReadOnly\command] 
@="C:\Program Files\Microsoft Office\Office12\EXCEL.EXE" /e
(既定)_ORG="C:\Program Files\Microsoft Office\Office12\EXCEL.EXE" /h /e
 
[HKEY_CLASSES_ROOT\Excel.Sheet.8\shell\OpenAsReadOnly\ddeexec] 
@=[open("%1",,1)]
(既定)_ORG=[open("%1",,,,,,,,,,,,,,1,,1)]

Microsoft Word, Excel を読み取り専用で開くメニューを追加する方法
"C:\Program Files\Microsoft Office\Office12\EXCEL.EXE" /e
[open("%1",,1)]