diff --git a/collector/iis.go b/collector/iis.go
index 8d311b07..aa98cdb0 100644
--- a/collector/iis.go
+++ b/collector/iis.go
@@ -1738,214 +1738,216 @@ func (c *IISCollector) collect(ch chan<- prometheus.Metric) (*prometheus.Desc, e
 		return nil, err
 	}
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_ActiveFlushedEntries,
-		prometheus.GaugeValue,
-		float64(dst_cache[0].ActiveFlushedEntries),
-	)
+	if len(dst_cache) > 0 {
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_ActiveFlushedEntries,
+			prometheus.GaugeValue,
+			float64(dst_cache[0].ActiveFlushedEntries),
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_FileCacheMemoryUsage,
-		prometheus.GaugeValue,
-		float64(dst_cache[0].CurrentFileCacheMemoryUsage),
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_FileCacheMemoryUsage,
+			prometheus.GaugeValue,
+			float64(dst_cache[0].CurrentFileCacheMemoryUsage),
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_MaximumFileCacheMemoryUsage,
-		prometheus.CounterValue,
-		float64(dst_cache[0].MaximumFileCacheMemoryUsage),
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_MaximumFileCacheMemoryUsage,
+			prometheus.CounterValue,
+			float64(dst_cache[0].MaximumFileCacheMemoryUsage),
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_FileCacheFlushesTotal,
-		prometheus.CounterValue,
-		float64(dst_cache[0].TotalFlushedFiles),
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_FileCacheFlushesTotal,
+			prometheus.CounterValue,
+			float64(dst_cache[0].TotalFlushedFiles),
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_FileCacheQueriesTotal,
-		prometheus.CounterValue,
-		float64(dst_cache[0].FileCacheHits+dst_cache[0].FileCacheMisses),
-	)
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_FileCacheHitsTotal,
-		prometheus.CounterValue,
-		float64(dst_cache[0].FileCacheHits),
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_FileCacheQueriesTotal,
+			prometheus.CounterValue,
+			float64(dst_cache[0].FileCacheHits+dst_cache[0].FileCacheMisses),
+		)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_FileCacheHitsTotal,
+			prometheus.CounterValue,
+			float64(dst_cache[0].FileCacheHits),
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_FilesCached,
-		prometheus.GaugeValue,
-		float64(dst_cache[0].CurrentFilesCached),
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_FilesCached,
+			prometheus.GaugeValue,
+			float64(dst_cache[0].CurrentFilesCached),
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_FilesCachedTotal,
-		prometheus.CounterValue,
-		float64(dst_cache[0].TotalFilesCached),
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_FilesCachedTotal,
+			prometheus.CounterValue,
+			float64(dst_cache[0].TotalFilesCached),
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_FilesFlushedTotal,
-		prometheus.CounterValue,
-		float64(dst_cache[0].TotalFlushedFiles),
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_FilesFlushedTotal,
+			prometheus.CounterValue,
+			float64(dst_cache[0].TotalFlushedFiles),
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_URICacheFlushesTotal,
-		prometheus.CounterValue,
-		float64(dst_cache[0].TotalFlushedURIs),
-		"user",
-	)
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_URICacheFlushesTotal,
-		prometheus.CounterValue,
-		float64(dst_cache[0].KernelTotalFlushedURIs),
-		"kernel",
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_URICacheFlushesTotal,
+			prometheus.CounterValue,
+			float64(dst_cache[0].TotalFlushedURIs),
+			"user",
+		)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_URICacheFlushesTotal,
+			prometheus.CounterValue,
+			float64(dst_cache[0].KernelTotalFlushedURIs),
+			"kernel",
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_URICacheQueriesTotal,
-		prometheus.CounterValue,
-		float64(dst_cache[0].URICacheHits+dst_cache[0].URICacheMisses),
-		"user",
-	)
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_URICacheQueriesTotal,
-		prometheus.CounterValue,
-		float64(dst_cache[0].KernelURICacheHits+dst_cache[0].KernelURICacheMisses),
-		"kernel",
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_URICacheQueriesTotal,
+			prometheus.CounterValue,
+			float64(dst_cache[0].URICacheHits+dst_cache[0].URICacheMisses),
+			"user",
+		)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_URICacheQueriesTotal,
+			prometheus.CounterValue,
+			float64(dst_cache[0].KernelURICacheHits+dst_cache[0].KernelURICacheMisses),
+			"kernel",
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_URICacheHitsTotal,
-		prometheus.CounterValue,
-		float64(dst_cache[0].URICacheHits),
-		"user",
-	)
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_URICacheHitsTotal,
-		prometheus.CounterValue,
-		float64(dst_cache[0].KernelURICacheHits),
-		"kernel",
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_URICacheHitsTotal,
+			prometheus.CounterValue,
+			float64(dst_cache[0].URICacheHits),
+			"user",
+		)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_URICacheHitsTotal,
+			prometheus.CounterValue,
+			float64(dst_cache[0].KernelURICacheHits),
+			"kernel",
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_URIsCached,
-		prometheus.GaugeValue,
-		float64(dst_cache[0].CurrentURIsCached),
-		"user",
-	)
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_URIsCached,
-		prometheus.GaugeValue,
-		float64(dst_cache[0].KernelCurrentURIsCached),
-		"kernel",
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_URIsCached,
+			prometheus.GaugeValue,
+			float64(dst_cache[0].CurrentURIsCached),
+			"user",
+		)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_URIsCached,
+			prometheus.GaugeValue,
+			float64(dst_cache[0].KernelCurrentURIsCached),
+			"kernel",
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_URIsCachedTotal,
-		prometheus.CounterValue,
-		float64(dst_cache[0].TotalURIsCached),
-		"user",
-	)
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_URIsCachedTotal,
-		prometheus.CounterValue,
-		float64(dst_cache[0].KernelTotalURIsCached),
-		"kernel",
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_URIsCachedTotal,
+			prometheus.CounterValue,
+			float64(dst_cache[0].TotalURIsCached),
+			"user",
+		)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_URIsCachedTotal,
+			prometheus.CounterValue,
+			float64(dst_cache[0].KernelTotalURIsCached),
+			"kernel",
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_URIsFlushedTotal,
-		prometheus.CounterValue,
-		float64(dst_cache[0].TotalFlushedURIs),
-		"user",
-	)
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_URIsFlushedTotal,
-		prometheus.CounterValue,
-		float64(dst_cache[0].KernelTotalFlushedURIs),
-		"kernel",
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_URIsFlushedTotal,
+			prometheus.CounterValue,
+			float64(dst_cache[0].TotalFlushedURIs),
+			"user",
+		)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_URIsFlushedTotal,
+			prometheus.CounterValue,
+			float64(dst_cache[0].KernelTotalFlushedURIs),
+			"kernel",
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_MetadataCached,
-		prometheus.GaugeValue,
-		float64(dst_cache[0].CurrentMetadataCached),
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_MetadataCached,
+			prometheus.GaugeValue,
+			float64(dst_cache[0].CurrentMetadataCached),
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_MetadataCacheFlushes,
-		prometheus.CounterValue,
-		float64(dst_cache[0].TotalFlushedMetadata),
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_MetadataCacheFlushes,
+			prometheus.CounterValue,
+			float64(dst_cache[0].TotalFlushedMetadata),
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_MetadataCacheQueriesTotal,
-		prometheus.CounterValue,
-		float64(dst_cache[0].MetadataCacheHits+dst_cache[0].MetadataCacheMisses),
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_MetadataCacheQueriesTotal,
+			prometheus.CounterValue,
+			float64(dst_cache[0].MetadataCacheHits+dst_cache[0].MetadataCacheMisses),
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_MetadataCacheHitsTotal,
-		prometheus.CounterValue,
-		float64(dst_cache[0].MetadataCacheHits),
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_MetadataCacheHitsTotal,
+			prometheus.CounterValue,
+			float64(dst_cache[0].MetadataCacheHits),
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_MetadataCachedTotal,
-		prometheus.CounterValue,
-		float64(dst_cache[0].TotalMetadataCached),
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_MetadataCachedTotal,
+			prometheus.CounterValue,
+			float64(dst_cache[0].TotalMetadataCached),
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_MetadataFlushedTotal,
-		prometheus.CounterValue,
-		float64(dst_cache[0].TotalFlushedMetadata),
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_MetadataFlushedTotal,
+			prometheus.CounterValue,
+			float64(dst_cache[0].TotalFlushedMetadata),
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_OutputCacheActiveFlushedItems,
-		prometheus.CounterValue,
-		float64(dst_cache[0].OutputCacheCurrentFlushedItems),
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_OutputCacheActiveFlushedItems,
+			prometheus.CounterValue,
+			float64(dst_cache[0].OutputCacheCurrentFlushedItems),
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_OutputCacheItems,
-		prometheus.CounterValue,
-		float64(dst_cache[0].OutputCacheCurrentItems),
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_OutputCacheItems,
+			prometheus.CounterValue,
+			float64(dst_cache[0].OutputCacheCurrentItems),
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_OutputCacheMemoryUsage,
-		prometheus.CounterValue,
-		float64(dst_cache[0].OutputCacheCurrentMemoryUsage),
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_OutputCacheMemoryUsage,
+			prometheus.CounterValue,
+			float64(dst_cache[0].OutputCacheCurrentMemoryUsage),
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_OutputCacheQueriesTotal,
-		prometheus.CounterValue,
-		float64(dst_cache[0].OutputCacheTotalHits+dst_cache[0].OutputCacheTotalMisses),
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_OutputCacheQueriesTotal,
+			prometheus.CounterValue,
+			float64(dst_cache[0].OutputCacheTotalHits+dst_cache[0].OutputCacheTotalMisses),
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_OutputCacheHitsTotal,
-		prometheus.CounterValue,
-		float64(dst_cache[0].OutputCacheTotalHits),
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_OutputCacheHitsTotal,
+			prometheus.CounterValue,
+			float64(dst_cache[0].OutputCacheTotalHits),
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_OutputCacheFlushedItemsTotal,
-		prometheus.CounterValue,
-		float64(dst_cache[0].OutputCacheTotalFlushedItems),
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_OutputCacheFlushedItemsTotal,
+			prometheus.CounterValue,
+			float64(dst_cache[0].OutputCacheTotalFlushedItems),
+		)
 
-	ch <- prometheus.MustNewConstMetric(
-		c.ServiceCache_OutputCacheFlushesTotal,
-		prometheus.CounterValue,
-		float64(dst_cache[0].OutputCacheTotalFlushes),
-	)
+		ch <- prometheus.MustNewConstMetric(
+			c.ServiceCache_OutputCacheFlushesTotal,
+			prometheus.CounterValue,
+			float64(dst_cache[0].OutputCacheTotalFlushes),
+		)
+	}
 
 	return nil, nil
 }