diff --git a/appveyor/build_task.bat b/appveyor/build_task.bat
index 91fedae85537..6e7096a84227 100644
--- a/appveyor/build_task.bat
+++ b/appveyor/build_task.bat
@@ -51,7 +51,7 @@ if %errorlevel% neq 0 exit /b 3
 if "%THREAD_SAFE%" equ "0" set ADD_CONF=%ADD_CONF% --disable-zts
 if "%INTRINSICS%" neq "" set ADD_CONF=%ADD_CONF% --enable-native-intrinsics=%INTRINSICS%
 
-set EXT_EXCLUDE_FROM_TEST=snmp,oci8_12c,pdo_oci,pdo_firebird,ldap,imap,ftp
+set EXT_EXCLUDE_FROM_TEST=bz2,exif,fileinfo,ffi,ftp,gmp,imap,ldap,oci8_12c,pdo_firebird,pdo_oci,snmp,soap,sodium,sqlite3,tidy
 if "%OPCACHE%" equ "0" set EXT_EXCLUDE_FROM_TEST=%EXT_EXCLUDE_FROM_TEST%,opcache
 
 set CFLAGS=/W1 /WX
diff --git a/run-tests.php b/run-tests.php
index 3c7189b24d20..8fea2cf9e77f 100755
--- a/run-tests.php
+++ b/run-tests.php
@@ -860,9 +860,22 @@ function write_information(): void
     }
     @unlink($info_file);
 
-    // load list of enabled extensions
-    save_text($info_file,
-        '<?php echo str_replace("Zend OPcache", "opcache", implode(",", get_loaded_extensions())); ?>');
+    // load list of enabled and loadable extensions
+    save_text($info_file, <<<'PHP'
+        <?php
+        echo str_replace("Zend OPcache", "opcache", implode(",", get_loaded_extensions()));
+        $ext_dir = ini_get("extension_dir");
+        foreach (scandir($ext_dir) as $file) {
+            if (!preg_match('/^(?:php_)?([_a-zA-Z0-9]+)\.(?:so|dll)$/', $file, $matches)) {
+                continue;
+            }
+            $ext = $matches[1];
+            if (!extension_loaded($ext) && @dl($file)) {
+                echo ",", $ext;
+            }
+        }
+        ?>
+    PHP);
     $exts_to_test = explode(',', `$php $pass_options $info_params $no_file_cache "$info_file"`);
     // check for extensions that need special handling and regenerate
     $info_params_ex = [