We recommend not to use any Antivirus or Endpoint Security solutions on Cameyo servers as it impacts performance and can cause side effects.


If you decide to use an Antivirus / Endpoint security solution, make sure you disable network scanning and add the following folders to the exclusion list, to improve performance:

  • c:\RemoteAppPilot
  • c:\RapStartSvc
  • c:\RapPrereqs
  • c:\guacd


If you want to easily add the above folders to Windows Server Protection (Defender) please run the following PowerShell lines with elevated privileges:

Add-MpPreference -ExclusionPath "C:\RemoteAppPilot"
Add-MpPreference -ExclusionPath "C:\RapStartSvc"
Add-MpPreference -ExclusionPath "C:\RapPrereqs"
Add-MpPreference -ExclusionPath "C:\guacd"

To check if the exclusions are set (in Windows Server Protection) run the following command:

(Get-MpPreference).ExclusionPath

Incompatible AVs

Cameyo supports most anti-virus and virus protection products. Anti-viruses known to cause incompatibility issues with Cameyo include:

  • Trend Micro: random issues including random crashes of guacd.exe were observed, and resolved when the AV was completely uninstalled.
  • Symantec Endpoint Protection (SEP): random issues including "System.ServiceModel.EndpointNotFoundException: There was no endpoint listening at https://api.cameyo.com/CameyoOnline.svc that could accept the message"
  • Carbon Black was reported to cause slowdowns.


Make sure you always use the server / virtualization version and not desktop versions of enpoint protection suites, if you install it on Cameyo servers

Note: it's recommended to completely uninstall an AV product in order to determine whether it's causing issues. Simply disabling an AV or adding exceptions is not enough to determine whether it is related to a conflict or not. Once the relation between the AV and the issues has been established, you can then reinstall the AV and try defining exceptions.


False alarms

False alarms do not affect compatibility. They just need to be acknowledged and accepted:

  • SentinelOne: false positives on Cameyo's executables: