Portable Installer Inno Setup Script

[punchao]

Source: dllFiles\ISSkinExU.dll; DestDir: "{tmp}"; Flags: dontcopy;
Source: InstallFiles\skin.cjstyles; DestDir: "{tmp}"; Flags: dontcopy;
i add this to the script,and work,cjstyles and ISSKinExU.dll dont copy to install folder,but uninstall dont work

when add
[UninstallDelete]
Type: filesandordirs; Name: {app}
to the script ,to uninstall the game correctly
these two files return to the install folder

and if I do not add
[UninstallDelete]
Type: filesandordirs; Name: {app}

the files are not deleted when uninstall