j.jacques wrote on Jul 6^th, 2015 at 7:19pm:

Hello I am named jeans-jacques I am a little annoyed here is impossible to validate the number of code of the legendary c130 (error codes 11) purchase of 26/06/15 which well I make and can use me thank you j.jacques

Hi Jean-Jaques

KB #436, shown below, provides the information you need to fix your problem. #3 privides you with a link to a zip file that redirects the installer to the new site for activating the 'High Performance Pro Yak-3', 'Legendary MiG-21', 'Legendary C-130', which should allow you to activate, then fly it. ;)

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Q: During installation I get the following error message: ERROR CODE #11

A: Please make sure you have the latest version of the product

There are several common reasons for the Error #11:

1. You are not connected to the Internet or the connection is interrupted at the moment. Please make sure your Internet connection is OK and stable.

2. Your 'firewall' does not allow installer to connect to CS server. Please try the following:
- Turn the firewall OFF,
- Install the Product,
- Turn the firewall ON.

3. For 'High Performance Pro Yak-3', 'Legendary MiG-21', 'Legendary C-130' : Make sure you have pointed installer to our new activation server. In order to redirect any product installer to the new server please:
- Save this zip file to any location at your PC
- Open the .zip file and Run (double click) the redirect_activation.bat file
- Click YES
- Click YES
- Press any key
After you did it once any product will be ready for installation and activation on our new server.

4. Make sure you are logged to Windows as a user with administrative privileges.

5. Some issues at CS server end. Please check NOTAMs. If none is in effect, try to reinstall a product again in 10 minutes.

6. If your OS is Windows Vista please read this.

7. If the above does not help please perform Offline Activation, search this Technical Support section for instructions.

8. If after Offline Activation installer still responds with Error #11, that means there is some conflict with your system custom settings and MS FS installation.

Please try the following:
- Redownload the product
- Reinstall the product
- Restart your system

If the above does not help we must admit your system configuration is a rare exception. You can try to install the product on another system or request a refund.

From: General / Download/Installation (QID 436)