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Message:

executable batch (any fixes?)

Posted by W Frymire on January 22, 2002 at 2:09 PM

What solution did you use for this problem? I have the same problem but on a windows 98 with it working fine on 2000.

> I'm writing a GUI to create an input file and run an existing DOS executable. In win2000 I've managed to get the executable to start up in a new dos window which will take keyboard input, just like if it had been started directly from DOS. But I can't get it to do this in Win95 where I have to use command.com rather than cmd.exe. The following code does start up the executable in a new window but its not receptive to keyboard input (despite the fact that typing 'command.com /C START batch.bat' at the dos prompt does work).

> Any Suggestions ?

> I do deal with the Input and Error streams using buffers, but don't do anything with the Output stream, as this is uneccessary for win2000 I was assuming that it wouldn't be necessary for win95 either.

> String osName = System.getProperty("os.name" );
> String[] cmd = new String[4];

> if( osName.equals( "Windows NT" ) || osName.equals( "Windows 2000" ) )
> {
> cmd[0] = "cmd.exe" ;
> cmd[1] = "/C" ;
> cmd[2] = "START";
> cmd[3] = "batch.bat";
> }
> else if( osName.equals( "Windows 95" ) || osName.equals( "Windows 98" ) )
> {
> cmd[0] = "command.com" ;
> cmd[1] = "/C" ;
> cmd[2] = "START";
> cmd[3] = "batch.bat";
> }
> else
> {
> System.out.println("Error unrecognised Operating System is : " + osName);
> }
>
> Runtime rt = Runtime.getRuntime();
> System.out.println("Execing " + cmd[0] + " " + cmd[1] + " " + cmd[2] + " " + cmd[3]);
> Process proc = rt.exec(cmd);