I want to use massren renamer in vim in order to rename files within the texteditor. First, I used this command within Vim to set Vim as default editor for massren :! c:\tools\massren_renamer\massren.exe --config editor "C:\Progra~2\Vim\vim74\gvim.exe --remote-silent-tab" Then I tried to change a number of text files with this command within Vim: :%! c:\tools\massren_renamer\massren.exe d:\t*.txt but the list of files doesn't open at all in Vim. What did I wrong?