Conditionnaly uninstall the service

packages/zabbix_agent.xml

@@ -2,7 +2,7 @@
 <packages>
     <package id="zabbix_agent"
              name="Agent de supervision Zabbix"
-             revision="20"
+             revision="22"
              priority="10">
 
         <variable name="PKG_VERSION" value="3.0.1" />
@@ -11,6 +11,9 @@
 
         <check type="uninstall" condition="versiongreaterorequal" path="Zabbix Agent" value="%PKG_VERSION%"/>
 
+        <install cmd='%COMSPEC% /C if exist "%PROGRAMFILES%\Zabbix Agent\zabbix_agentd.exe" "%PROGRAMFILES%\Zabbix Agent\zabbix_agentd.exe" -c "%PROGRAMFILES%\Zabbix Agent\zabbix_agentd.conf" --uninstall'>
+            <exit code="any" />
+        </install>
         <install cmd='msiexec /qn /i "%MSI%" SERVER=%ZBX_SERVER_IP% RMTCMD=0' />
         <install cmd='netsh advfirewall firewall add rule name="Zabbix Agent" dir=in action=allow protocol=TCP localport=10050 enable=yes remoteip=%ZBX_SERVER_IP%' />
         <install cmd='%COMSPEC% /C sc start "Zabbix Agent"'>