rustdesk/res/msi/Package/Fragments/CustomActions.wxs

<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs">
  <Fragment>
    <?include ../Includes.wxi?>

    <Binary Id="Custom_Actions_Dll" SourceFile="$(var.CustomActions.TargetDir)$(var.CustomActions.TargetName).dll" />

    <CustomAction Id="CustomActionHello" DllEntry="CustomActionHello" Impersonate="yes" Execute="immediate" Return="ignore" BinaryRef="Custom_Actions_Dll"/>
    <CustomAction Id="RemoveInstallFolder" DllEntry="RemoveInstallFolder" Impersonate="no" Execute="deferred" Return="ignore" BinaryRef="Custom_Actions_Dll"/>

    <!-- Use WixQuietExec to run the commands to avoid the command window popping up. The command line to run needs to be stored
				 in a property with the same id as the WixQuietExec custom action and the path to the exe needs to be quoted.
				 A SetProperty action is used to allow the [SystemFolder] reference to be resolved and needs to be scheduled to run before the action.-->

    <SetProperty Id="FirewallPortOutAdd" Value="&quot;[SystemFolder]netsh.exe&quot; advfirewall firewall add rule name=&quot;$(var.Product) Service&quot; dir=out action=allow program=$(var.ProductLower) enable=yes" Before="FirewallPortOutAdd" Sequence="execute" />
    <CustomAction Id="FirewallPortOutAdd" DllEntry="WixQuietExec" Execute="deferred" Return="asyncWait" BinaryRef="Wix4UtilCA_$(sys.BUILDARCHSHORT)" />
    <SetProperty Id="FirewallPortInAdd" Value="&quot;[SystemFolder]netsh.exe&quot; advfirewall firewall add rule name=&quot;$(var.Product) Service&quot; dir=in action=allow program=$(var.ProductLower) enable=yes" Before="FirewallPortInAdd" Sequence="execute" />
    <CustomAction Id="FirewallPortInAdd" DllEntry="WixQuietExec" Execute="deferred" Return="asyncWait" BinaryRef="Wix4UtilCA_$(sys.BUILDARCHSHORT)" />

    <SetProperty Id="FirewallPortRemove" Value="&quot;[SystemFolder]netsh.exe&quot; advfirewall firewall delete rule name=&quot;$(var.Product) Service&quot;" Before="FirewallPortRemove" Sequence="execute" />
    <CustomAction Id="FirewallPortRemove" DllEntry="WixQuietExec" Execute="deferred" Return="asyncWait" BinaryRef="Wix4UtilCA_$(sys.BUILDARCHSHORT)" />

  </Fragment>
</Wix>