You'll get 'xyz is not a valid Win32 application' error message. The password to extract the files is nirsoft123! (Click the password to copy it to the clipboard)īe aware that you can only run these. You can download the entire package in zip file from here. exe file for every utility in the list below. This package contains the help file (.chm) and the 圆4. This package contains all utilities in NirSoft that have a separated build for 64-bit versions (圆4) of Windows.