I'm writing an AutoIt script to install an Intel Threading Blocks software. Although the displayed install window is active, the window does not respond to the "send" command which imitates keyborad action ( or ControlClick command). I did debug it for days and still can not get it to resolve. Can you help me? Below is my script: Global $cmd = "C:VcsourceAutoIT_installsw_installw_tbb_4.0.4.325.exe" FileChangeDir("C:VcsourceAutoIT_installsw_install") Run(@ComSpec & ' /c' &a