Hi all,   I am looking for a lisp that can do some requirements i have many drawings in one folder and sub folder for example: in D:\Drawing, there are many drawings with the format: xA-xxxx, 1A-1234, 2A-4321, 3A-1234, sometime it has a tail 1A-1234yyy but yyy is not important, 1234 is drawing number, it is unique number, so what i want is: 1, I need a lisp that can open drawing 1A-1234 by inputting it into  a popup window of autocad and hit enter. it means this lis