diff --git a/t3lib/class.t3lib_extmgm.php b/t3lib/class.t3lib_extmgm.php
index 6a7a13fe462156cc0a2416e6cbbf1022664a8a93..c32deda3658e4db3838d557a7281c451ea438eb6 100644
--- a/t3lib/class.t3lib_extmgm.php
+++ b/t3lib/class.t3lib_extmgm.php
@@ -212,12 +212,18 @@ final class t3lib_extMgm {
 		if (!self::isLoaded($key)) {
 			return '';
 		}
+		$runtimeCache = $GLOBALS['typo3CacheManager']->getCache('cache_runtime');
+		$cacheIdentifier = 'extMgmExtVersion-' . $key;
 
-		$EM_CONF = array();
-		$_EXTKEY = $key;
-		include(self::extPath($key) . 'ext_emconf.php');
+		if (!($extensionVersion = $runtimeCache->get($cacheIdentifier))) {
 
-		return $EM_CONF[$key]['version'];
+			$EM_CONF = array();
+			$_EXTKEY = $key;
+			include(self::extPath($key) . 'ext_emconf.php');
+			$extensionVersion = $EM_CONF[$key]['version'];
+			$runtimeCache->set($cacheIdentifier, $extensionVersion);
+		}
+		return $extensionVersion;
 	}
 
 
@@ -244,7 +250,7 @@ final class t3lib_extMgm {
 	public static function addTCAcolumns($table, $columnArray, $addTofeInterface = 0) {
 		t3lib_div::loadTCA($table);
 		if (is_array($columnArray) && is_array($GLOBALS['TCA'][$table]) && is_array($GLOBALS['TCA'][$table]['columns'])) {
-				 // Candidate for t3lib_div::array_merge() if integer-keys will some day make trouble...
+				// Candidate for t3lib_div::array_merge() if integer-keys will some day make trouble...
 			$GLOBALS['TCA'][$table]['columns'] = array_merge($GLOBALS['TCA'][$table]['columns'], $columnArray);
 			if ($addTofeInterface) {
 				$GLOBALS['TCA'][$table]['feInterface']['fe_admin_fieldList'] .= ',' . implode(',', array_keys($columnArray));
@@ -1205,8 +1211,8 @@ final class t3lib_extMgm {
 		$pluginContent = trim('
 plugin.' . $cN . $prefix . ' = USER' . ($cached ? '' : '_INT') . '
 plugin.' . $cN . $prefix . ' {
-  includeLibs = ' . $GLOBALS['TYPO3_LOADED_EXT'][$key]['siteRelPath'] . $classFile . '
-  userFunc = ' . $cN . $prefix . '->main
+	includeLibs = ' . $GLOBALS['TYPO3_LOADED_EXT'][$key]['siteRelPath'] . $classFile . '
+	userFunc = ' . $cN . $prefix . '->main
 }');
 		self::addTypoScript($key, 'setup', '
 # Setting ' . $key . ' plugin TypoScript