cmd.exe /k ""c:\Program Files\test.bat"" x86 will run test.bat with the parameter of x86, however the same line does not work with tcc.exe which states: TCC: Unknown command "c:\Program" Found this as it's tripping up my development team from adopting Take Command. They use the Microsoft Visual Studio 2010 Command Prompt shortcut (attached) installed with VS2010. I've told them tcc.exe is 100% cmd.exe compatible, even down to the bugs, but then this isn't working. Just removing the double quoting is an easy workaround, but it loses confidence in the group so that they're wary of using TCC. :( We're using v13.04.62. Is this something that can be 'fixed' so tcc.exe has the same behavior as cmd.exe?