Ok, here's what I'm trying to do. I've searched for the 7zip.udf and it's a complete no-go for what I wish to do, so I'm trying to make it work via the command line. Problem is, I'm so rusty that I can't exactly wrap my head around this one. $pid = RunWait(@ComSpec & " /c " & 'C:\Users\My Name\Documents\7za.exe t badzipfile.zip', "") Sleep(5000) MsgBox(0,"",StdoutRead($pid) & @CRLF & StderrRead($pid)) I'm trying to read whether or not a .zip file passes or is corrupt wi