Failed to start ProxyServer

This issue is related to Kameleo v1.9.7. Please upgrade to Kameleo v2 or try to solve the issue by reading this article.

Note that the latest Windows Defender update and some other Antivirus software are conflicting with Kameleo’s spoofing mechanism. This results that the Kameleo.ProxyServerV2.exe is being deleted from the program folder. Which is C:\Program Files (x86)\Kameleo Team\Kameleo by default.

So if you see the following error message, you will have to whitelist Kameleo on your Antivirus software.

Fatal error. Failed to start Proxy Server, file not found! Please check your antivirus software’s log!

Here we provide you a tutorial on how you can add Kameleo as an exclusion for Windows Defender on Windows 10:

1) Go to Start menu > Settings > Update & Security  > Windows Security > Virus & threat protection.

2) Under Virus & threat protection settings, select Manage settings, and then under Exclusions, select Add or remove exclusions.


3) Select Add an exclusion, and then select the Kameleo program folder, which is by default: C:\Program Files (x86)\Kameleo Team\Kameleo


Or, you can run the following command in Power Shell, with administrative privileges:

Add-MpPreference -ExclusionPath "C:\Program Files (x86)\Kameleo Team\Kameleo"

After you have added it to Windows Defender exclusions, please try to reinstall Kameleo. After installation check if the Kameleo.ProxyServerV2.exe is present at the program folder. If not, try to turn off Windows Defender or other Antivirus Software and reinstall Kameleo again.

If you are using some other Antivirus software you will have to search for another method to whitelist Kameleo.

Change installation folder

For a couple of users the thing that helped was changing the installation folder to something like: C:\Users\<username>\Kameleo

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