After you create the Code_p721.txt, go to https://www.captainsim.com/activ/offline.php. Once there, you see what the page like you can see in the attached image.
Once you get there, you have to click on the Browse button > find the Code_p721.txt and select it > click on Open
Checkmark the I'm not a robot, and verify that you are not a robot
Then click on Get a Key > Save the Key_p721.txt file (and remember where you save it)
Run the CS 727-100 Base Pack installer (current version is csp721_2700.exe) and when you select USE A KEY RECEIVED FROM CAPTAIN SIM browse to the save Key_p721.txt, and select it, click on Opem, and then click on the prompts to conyinue with the installation.
It should work after you have done all that.


Turn off your Antivirus Program, and Windows Defender when installing, or one of them will delete any files it considers to be a threat (virus). There are NO VIRUSES in the Captain Sim installers! But if they think there are, they are called a Flase Positive, meaning it believes they are viruses, but they are not.

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