diff --git a/main.go b/main.go
index 23e3b93..0f4728a 100644
--- a/main.go
+++ b/main.go
@@ -167,11 +167,22 @@ func (m *myservice) Execute(args []string, r <-chan svc.ChangeRequest, status ch
 
 	for _, chCfg := range runtimeChannels {
 		chCfg := chCfg
-		wg.Add(1)
-		go func() {
-			defer wg.Done()
-			runChannelWatcher(ctx, hostname, chCfg, out)
-		}()
+
+		chunks := splitIDMap(chCfg.IDs, 20)
+		for i, idsChunk := range chunks {
+			workerCfg := ChannelConfig{
+				Name: chCfg.Name,
+				IDs:  idsChunk,
+			}
+
+			wg.Add(1)
+			go func(chunkNo int, cfg ChannelConfig) {
+				defer wg.Done()
+				log.Printf("[%s] Starte Watcher-Chunk %d/%d mit %d IDs",
+					cfg.Name, chunkNo+1, len(chunks), len(cfg.IDs))
+				runChannelWatcher(ctx, hostname, cfg, out)
+			}(i, workerCfg)
+		}
 	}
 
 	status <- svc.Status{State: svc.Running, Accepts: cmdsAccepted}
@@ -279,11 +290,22 @@ func runDebug(cfg *AgentConfig, state *AgentState) {
 
 	for _, chCfg := range runtimeChannels {
 		chCfg := chCfg
-		wg.Add(1)
-		go func() {
-			defer wg.Done()
-			runChannelWatcher(ctx, hostname, chCfg, out)
-		}()
+
+		chunks := splitIDMap(chCfg.IDs, 20)
+		for i, idsChunk := range chunks {
+			workerCfg := ChannelConfig{
+				Name: chCfg.Name,
+				IDs:  idsChunk,
+			}
+
+			wg.Add(1)
+			go func(chunkNo int, cfg ChannelConfig) {
+				defer wg.Done()
+				log.Printf("[%s] Starte Watcher-Chunk %d/%d mit %d IDs",
+					cfg.Name, chunkNo+1, len(chunks), len(cfg.IDs))
+				runChannelWatcher(ctx, hostname, cfg, out)
+			}(i, workerCfg)
+		}
 	}
 
 	elog.Info(ServiceLogInfo, "Debug-Modus läuft. Mit Strg+C beenden.")
@@ -568,6 +590,34 @@ func sendBatch(client *http.Client, backendURL string, state *AgentState, enroll
 	return false, fmt.Errorf("backend antwortete mit HTTP %d: %s", resp.StatusCode, strings.TrimSpace(string(body)))
 }
 
+func splitIDMap(ids map[uint32]bool, maxPerChunk int) []map[uint32]bool {
+	if maxPerChunk <= 0 {
+		maxPerChunk = 20
+	}
+
+	list := make([]int, 0, len(ids))
+	for id := range ids {
+		list = append(list, int(id))
+	}
+	sort.Ints(list)
+
+	var chunks []map[uint32]bool
+	for start := 0; start < len(list); start += maxPerChunk {
+		end := start + maxPerChunk
+		if end > len(list) {
+			end = len(list)
+		}
+
+		chunk := make(map[uint32]bool, end-start)
+		for _, id := range list[start:end] {
+			chunk[uint32(id)] = true
+		}
+		chunks = append(chunks, chunk)
+	}
+
+	return chunks
+}
+
 func evtSubscribe(channelPath, query string, signal windows.Handle, flags uint32) (windows.Handle, error) {
 	chPtr, err := windows.UTF16PtrFromString(channelPath)
 	if err != nil {