在 regedit 中更改預設開啟的程式

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.sb2]

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.sb2\OpenWithList]
"a"="chrome.exe"
"MRUList"="ba"
"b"="Scratch 2.exe"

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.sb2\OpenWithProgids]
"Scratch2ProjectFile"=hex(0):