This is an old revision of the document!
Computer\HKEY_CLASSES_ROOT\telnet\shell\open\command
"C:\Program Files\VanDyke Software\Clients\SecureCRT.exe" /T %1" /F
python3
for a popup window asking you install the modules for Python3.
nano /Users/userName/Library/Application Support/VanDyke/SecureCRT/Config/Global.ini
where userName is your current profile name.
mv macOS-SetSecureCRTDefaultURLHandler.py.txt macOS-SetSecureCRTDefaultURLHandler.py
chmod +x macOS-SetSecureCRTDefaultURLHandler.py
python3
./macOS-SetSecureCRTDefaultURLHandler.py --register