Hi, i really need your help people! I need a batch file (i think that's how it is called..) to do the following thing ; When i run it i want it to automatically change the number format (commma (,) to period (.)) of my regional settings then run a program i.e. Autocad and change it back to what it was ( period (.) to comma (,)) after i close the program. Is this possible ? Can anyone PLEASE help me on how to do this?? This little thing has put me into big problems with my work so i would appreciate if you could give me a hint! Thanks in advance!