where totalcmd.exe (or totalcmd64.exe ) is installed. The directory containing your wincmd.ini file.
No. The Total Commander Key File contains encrypted data. It is not an executable, script, or macro. You can open it in Notepad to verify. It looks like random characters. It cannot infect your PC with malware. However, . If you post it online, anyone could use it to register their copy of Total Commander, which violates the license agreement, and Ghisler Software may blacklist that key in future updates. Total Commander Key File