Dick Oz The only software I found to debug (DOS) CMD Batch files. It works quite nicely with step by step execution, breakpoints and display of variables and the current batch command.
Win 7 and XP have no /Y switch for CMD anymore, so no more single line execution.
I find the regular price of $80 way to high for the (my) occasional use. So perhaps 50% is starting point to generate more interest? Especially since win 7 again expanded the batch capabilities!