diff --git a/platform/built-in-server/resources/META-INF/builtInServer.xml b/platform/built-in-server/resources/META-INF/builtInServer.xml
index 833bfed153b1..af994072ab23 100644
--- a/platform/built-in-server/resources/META-INF/builtInServer.xml
+++ b/platform/built-in-server/resources/META-INF/builtInServer.xml
@@ -16,7 +16,8 @@
   </extensionPoints>
 
   <extensions defaultExtensionNs="com.intellij">
-    <applicationService serviceInterface="org.jetbrains.ide.BuiltInServerManager" serviceImplementation="org.jetbrains.ide.BuiltInServerManagerImpl" preload="true"/>
+    <applicationService serviceInterface="org.jetbrains.ide.BuiltInServerManager" serviceImplementation="org.jetbrains.ide.BuiltInServerManagerImpl"/>
+    <applicationActivity implementation="org.jetbrains.ide.BuiltInServerManagerLauncher"/>
 
     <applicationService serviceImplementation="org.jetbrains.builtInWebServer.BuiltInServerOptions"/>
     <xdebugger.configurableProvider implementation="org.jetbrains.builtInWebServer.BuiltInServerOptions$BuiltInServerDebuggerConfigurableProvider"/>
@@ -27,7 +28,7 @@
     <httpRequestHandler implementation="org.jetbrains.ide.InstallPluginService"/>
     <httpRequestHandler implementation="org.jetbrains.ide.UploadLogsService"/>
 
-    <applicationService serviceImplementation="org.jetbrains.ide.ToolboxRestServiceConfig" preload="true"/>
+    <applicationActivity implementation="org.jetbrains.ide.ToolboxRestLauncher"/>
     <httpRequestHandler implementation="org.jetbrains.ide.ToolboxRestService"/>
     <toolboxServiceHandler implementation="org.jetbrains.ide.ToolboxUpdateNotificationHandler"/>
     <toolboxServiceHandler implementation="org.jetbrains.ide.ToolboxRestartNotificationHandler"/>
diff --git a/platform/built-in-server/src/org/jetbrains/ide/BuiltInServerManagerImpl.kt b/platform/built-in-server/src/org/jetbrains/ide/BuiltInServerManagerImpl.kt
index 2277bf344044..8c2a26912304 100644
--- a/platform/built-in-server/src/org/jetbrains/ide/BuiltInServerManagerImpl.kt
+++ b/platform/built-in-server/src/org/jetbrains/ide/BuiltInServerManagerImpl.kt
@@ -1,14 +1,17 @@
 // Copyright 2000-2024 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
 package org.jetbrains.ide
 
+import com.intellij.ide.ApplicationActivity
 import com.intellij.notification.Notification
 import com.intellij.notification.NotificationType
 import com.intellij.openapi.Disposable
 import com.intellij.openapi.application.ApplicationManager
 import com.intellij.openapi.application.ApplicationNamesInfo
 import com.intellij.openapi.components.service
+import com.intellij.openapi.components.serviceAsync
 import com.intellij.openapi.diagnostic.logger
 import com.intellij.openapi.util.Disposer
+import com.intellij.openapi.util.registry.RegistryManager
 import com.intellij.util.SystemProperties
 import com.intellij.util.Url
 import com.intellij.util.Urls
@@ -30,6 +33,12 @@ import java.net.NetworkInterface
 import java.net.URLConnection
 import java.util.*
 
+private const val PORTS_COUNT = 20
+private const val PROPERTY_RPC_PORT = "rpc.port"
+private const val PROPERTY_DISABLED = "idea.builtin.server.disabled"
+
+private val LOG = logger<BuiltInServerManager>()
+
 class BuiltInServerManagerImpl(private val coroutineScope: CoroutineScope) : BuiltInServerManager() {
   private val authService = service<BuiltInWebServerAuth>()
   private var serverStartFuture: Job? = null
@@ -46,19 +55,15 @@ class BuiltInServerManagerImpl(private val coroutineScope: CoroutineScope) : Bui
     val app = ApplicationManager.getApplication()
     serverStartFuture = when {
       app.isUnitTestMode -> null
-      else -> coroutineScope.launch(Dispatchers.IO) { startServerInPooledThread() }
+      else -> coroutineScope.launch(Dispatchers.IO) {
+        startServerInPooledThread()
+      }
     }
   }
 
   override fun createClientBootstrap(): Bootstrap = NettyUtil.nioClientBootstrap(server!!.childEventLoopGroup)
 
   companion object {
-    private const val PORTS_COUNT = 20
-    private const val PROPERTY_RPC_PORT = "rpc.port"
-    private const val PROPERTY_DISABLED = "idea.builtin.server.disabled"
-
-    private val LOG = logger<BuiltInServerManager>()
-
     internal const val NOTIFICATION_GROUP = "Built-in Server"
 
     @JvmStatic
@@ -119,6 +124,9 @@ class BuiltInServerManagerImpl(private val coroutineScope: CoroutineScope) : Bui
       return
     }
 
+    // extensions may use registry to enable/disable URL handlers
+    RegistryManager.getInstanceAsync().awaitRegistryLoad()
+
     try {
       server = BuiltInServer.start(firstPort = getDefaultPort(), portsCount = PORTS_COUNT, tryAnyPort = true)
       bindCustomPorts(server!!)
@@ -171,3 +179,12 @@ class BuiltInServerManagerImpl(private val coroutineScope: CoroutineScope) : Bui
     }
   }
 }
+
+/**
+ * Instead of preloading too early, we explicitly start the server at the end of the application boot sequence.
+ */
+internal class BuiltInServerManagerLauncher : ApplicationActivity {
+  override suspend fun execute() {
+    serviceAsync<BuiltInServerManager>()
+  }
+}
\ No newline at end of file
diff --git a/platform/built-in-server/src/org/jetbrains/ide/ToolboxRestService.kt b/platform/built-in-server/src/org/jetbrains/ide/ToolboxRestService.kt
index ef4af6d71add..4efb5047ecaf 100644
--- a/platform/built-in-server/src/org/jetbrains/ide/ToolboxRestService.kt
+++ b/platform/built-in-server/src/org/jetbrains/ide/ToolboxRestService.kt
@@ -4,17 +4,23 @@ package org.jetbrains.ide
 import com.google.gson.JsonElement
 import com.google.gson.JsonObject
 import com.google.gson.JsonParser
+import com.intellij.ide.ApplicationActivity
 import com.intellij.openapi.Disposable
-import com.intellij.openapi.diagnostic.logger
+import com.intellij.openapi.components.Service
+import com.intellij.openapi.components.serviceAsync
 import com.intellij.openapi.extensions.ExtensionPointName
 import com.intellij.openapi.util.Disposer
+import com.intellij.util.AwaitCancellationAndInvoke
 import com.intellij.util.asSafely
+import com.intellij.util.awaitCancellationAndInvoke
 import com.intellij.util.concurrency.AppExecutorUtil
 import com.intellij.util.io.delete
 import io.netty.buffer.Unpooled
 import io.netty.channel.ChannelHandlerContext
 import io.netty.channel.ChannelOption
 import io.netty.handler.codec.http.*
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.launch
 import org.jetbrains.annotations.ApiStatus
 import org.jetbrains.io.addCommonHeaders
 import java.nio.file.Files
@@ -63,7 +69,7 @@ interface ToolboxServiceHandler<T> {
   /**
    * Check if a given HTTP method is supported by this specific handler
    */
-  fun isMethodSupported(method: HttpMethod) = method == HttpMethod.POST
+  fun isMethodSupported(method: HttpMethod): Boolean = method == HttpMethod.POST
 }
 
 private fun findToolboxHandlerByUri(requestUri: String): ToolboxServiceHandler<*>? = toolboxHandlerEP.findFirstSafe {
@@ -87,19 +93,27 @@ private fun <T> wrapHandler(handler: ToolboxServiceHandler<T>, request: JsonElem
   }
 }
 
-internal class ToolboxRestServiceConfig : Disposable {
-  override fun dispose() = Unit
+internal class ToolboxRestLauncher : ApplicationActivity {
+  override suspend fun execute() {
+    serviceAsync<ToolboxRestServiceConfig>()
+  }
+}
 
+@Service(Service.Level.APP)
+@OptIn(AwaitCancellationAndInvoke::class)
+internal class ToolboxRestServiceConfig(cs: CoroutineScope) {
   init {
     val toolboxPortFilePath = System.getProperty("toolbox.notification.portFile")
     if (toolboxPortFilePath != null) {
-      AppExecutorUtil.getAppExecutorService().submit {
-        val server = BuiltInServerManager.getInstance()
+      cs.launch {
+        val server = serviceAsync<BuiltInServerManager>()
         val port = server.waitForStart().port
         val portFile = Path.of(toolboxPortFilePath)
+
         runCatching { Files.createDirectories(portFile.parent) }
         runCatching { portFile.writeText("$port") }
-        Disposer.register(this) {
+
+        cs.awaitCancellationAndInvoke {
           runCatching { portFile.delete() }
         }
       }
@@ -108,10 +122,6 @@ internal class ToolboxRestServiceConfig : Disposable {
 }
 
 internal class ToolboxRestService : RestService() {
-  internal companion object {
-    private val LOG = logger<ToolboxRestService>()
-  }
-
   override fun getServiceName() = "toolbox"
 
   override fun isSupported(request: FullHttpRequest): Boolean {