Delphi_UnableToCreateProcess

Delphi :Unable To Create Process

Delphi cannot run program win64 when internet sharing service is running or WinNat etc, it returned error “Unable to create process”

ICS, WinNat and some other app or services is block binding socket to port to some port from 63020 to 65535 or any range.

It effect on debugging win64 project in Delphi because Delphi debugger for win64 is using “dbkw64_28_0.exe” or similar, that use port above 63020 or later 64448.

To check the range of ports is reserved or used run one of this commands.

netstat -an | find "LISTENING"
netsh interface ipv4 show excludedportrange protocol=tcp```

To resolve the problem temporary you can stop the services that reserved it, or just stop and start

net stop WinNAT
net start WinNAT

To resolve the problem permanent, reserved this port to your self before WinNat reserved it

net stop WinNAT
netsh int ipv4 add excludedportrange protocol=tcp startport=64440 numberofports=10 store=persistent
net start WinNAT

To delete your reservation

netsh int ipv4 delete excludedportrange protocol=tcp startport=64440 numberofports=10