Most Mandarin varieties have four tones. The final stops of Middle Chinese have disappeared in most of these varieties, but some have merged them as a final glottal stop. Many Mandarin varieties, including the Beijing dialect, retain retroflex initial consonants, which have been lost in southern dialect groups.
explorer.exe is a system process that is needed for your PC to work properly. It should not be removed. Check your system now to identify unused processes that are slowing down your computer. The explorer.exe file is an executable file for Windows Explorer.
Running EXE Files (Windows) 1  1. Double-click an EXE file to run it. EXE files are Windows executable files, and are designed to be run as programs. 2  2. Open the Registry Editor if you can't run EXE files. If you get error messages when you try to run an EXE file or nothing happens, there may be a problem with your Windows registry settings.