[Files]
Source: MyPackage.msi; DestDir: {tmp}
[Run]
Filename: {%COMSPEC}; Parameters: /C msiexec -i {tmp}\MyPacakge.msi; WorkingDir:{tmp}; StatusMsg: “Installing my package”
// 或者
[Run]
Filename: msiexec.exe; Parameters: “-i “”{src}\MyPacakge.msi”" -qn”; WorkingDir: “{src}”; StatusMsg: “Installing my package”