A copy of the DOS 6.22 HELP.* and QBASIC.* files in your DOS or Windows\Command directory will give you access to a better HELP function than the /? one in DOS 7.x for Winn9x. WinNT/2K and XP trimmed down the available commands too much in the emulator...
There are still good 'tutorials' for batch file programming on the Web, use a search tool.