Hi, I have encountered a problem with os.spawn(arg) on Windows. If arg[1]='foo bar' and arg[0]=nil, then the spawned process gets 'foo' as argv[0] and 'bar' as argv[1]. This might be expected, since according to docs, os.spawn doesn't do any argument processing. So I tried double quoting arg[1]='"foo bar"' (i.e. double quotes are part of arg[1]) but then os.spawn fails with invalid argument error. Is this expected? Furthermore, passing a string '"foo bar"' to os.spawn (including the double quotes) instead of a table, results in spawning 'foo bar' but again with 'foo' as argv[0] and 'bar' as argv[1]. The only way I found to properly spawn a command with spaces is by giving arg[0] explicitly: arg={[0]='foo bar', '"foo bar"', ...} Cheers, Tomek