cscript.exe C:\Path\To\Script.vbs
C:\Temp\ee>dir
Volume in drive C is Windows 7
Volume Serial Number is 0000-0000
Directory of C:\Temp\ee
12/27/2012 01:17 PM <DIR> .
12/27/2012 01:17 PM <DIR> ..
12/27/2012 01:17 PM 2 1.txt
12/27/2012 01:17 PM 2 2.txt
12/27/2012 01:17 PM 2 3.txt
3 File(s) 6 bytes
2 Dir(s) 4,508,450,816 bytes free
C:\Temp\ee>ren *.txt *.bak
C:\Temp\ee>dir
Volume in drive C is Windows 7
Volume Serial Number is 0000-0000
Directory of C:\Temp\ee
12/27/2012 01:17 PM <DIR> .
12/27/2012 01:17 PM <DIR> ..
12/27/2012 01:17 PM 2 1.bak
12/27/2012 01:17 PM 2 2.bak
12/27/2012 01:17 PM 2 3.bak
3 File(s) 6 bytes
2 Dir(s) 4,508,454,912 bytes free
~bp