如何使用Inno Setup根据注册表项选择在文件夹中安装插件/文件？

[Setup]
AppName=MyApp
AppVerName=MyApp %VERSION%
DefaultDirName={pf}\MyApp
DefaultGroupName=MyApp
UninstallDisplayName=Uninstall MyApp
UninstallFilesDir=ProgramFiles
UninstallLog={app}\Logs
OutputDir=build\dist
SetupIconFile=MyApp.ico
OutputScriptFile=setup.iss
Compression=lzma
SolidCompression=yes
SetupOnly=true
SubstitutionsFile=substitutions.ini
UsePreviousVersion=false
VersionInfoVersion=2
VersionInfoTextVersion=Text: MyApp {VER}\r
VersionInfoCompanyName={COMPNY}\r
VersionInfoProductName={APPNM}\r