I use "C:\Windows\system32\robocopy.exe" in a batch file to copy a file including Unicode characters in the file name. Before calling robocopy.exe I set the code page to UTF8 (chcp 65001). -> The call of the robocopy.exe will not do the expected operation Note: When I copy the robocopy.exe from its original destination ("C:\Windows\system32") to e.g. "C:\Temp" and use the copied robocopy.exe in my batch file all works fine! Operating system is Windows 7 64bit Version of Robocopy.exe is 5.1.10.1027 Steps to reproduce: 1. Paste the following code to a text editor (e.g. notepad++) and save it as "test.bat" using encoding "UTF8 without BOM": @echo off chcp 65001 "C:\Windows\System32\ROBOCOPY.exe" "C:\Test" "D:\Test" ".txt" pause 2. Run the file "test.bat" -> The call of the robocopy.exe will not work as expected, but returns "The operation completed successfully."