Cant Schedule a dbexport on NT

Hey all - I want to do a dbexport every night on my NT server. Ive written a program (dumpit.exe) which does this just fine when I run it manually from the Command Line Utilities. However, when I attemt to put it in my scheduler, nothing happens. Ive started my scheduler (Control Panel/Services) and have used the 'at' command to schedule dumpit.exe to occur. Ive written a 2 line .bat file: c:\\winnt\\system32\\cmd.exe /k c:\\informix\\bin\\setenv.cmd c:\\unload\\dumpit.exe <dbname1 dbname2 etc> I then run the following: at 00:00 "cmd /c dumpit.bat". Unfortunately, it doesnt seem to work. Any suggestions?