TCC 9.02.151 Windows XP [Version 5.1.2600] TCC Build 151 Windows XP Build 2600 Service Pack 3 I find this UNSET behavior very curious. Why doesn't the second one say "Not in environment" also? D:\>unset * [D:\]unset q TCC: Not in environment "q" [D:\]unset q[ If I actually make a variable called q[ it seems I can't remove it unless I use SET Q[= with nothing following; unset won't do it. [D:\]set q[=123 [D:\]set q* q[=123 [D:\]echo %[q 123 [D:\]unset q[ [D:\]echo %[q 123 [D:\]set q[ [D:\]echo %[q ECHO is OFF -- 2008 Fridays: 4/4, 6/6, 8/8, 10/10, 12/12 and 5/9, 9/5, 7/11, 11/7. Next year they're Saturday. Measure wealth by the things you have for which you would not take money.