diff --git a/appveyor/build_task.bat b/appveyor/build_task.bat
index ce199fa0f35a5..61e3042fadd28 100644
--- a/appveyor/build_task.bat
+++ b/appveyor/build_task.bat
@@ -51,11 +51,6 @@ 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
-rem the following exts are tested via --EXTENSIONS--; update as necessary
-set EXT_EXCLUDE_FROM_TEST=bz2,exif,fileinfo,ffi,ftp,gd,gmp,soap,sodium,sqlite3,tidy,%EXT_EXCLUDE_FROM_TEST%
-if "%OPCACHE%" equ "0" set EXT_EXCLUDE_FROM_TEST=%EXT_EXCLUDE_FROM_TEST%,opcache
-
 set CFLAGS=/W1 /WX
 
 cmd /c configure.bat ^
@@ -66,7 +61,7 @@ cmd /c configure.bat ^
 	--enable-object-out-dir=%PHP_BUILD_OBJ_DIR% ^
 	--with-php-build=%DEPS_DIR% ^
 	%ADD_CONF% ^
-	--with-test-ini-ext-exclude=%EXT_EXCLUDE_FROM_TEST%
+	--disable-test-ini
 if %errorlevel% neq 0 exit /b 3
 
 nmake /NOLOGO
diff --git a/appveyor/test_task.bat b/appveyor/test_task.bat
index 87eee6de8bd79..7c559daee95ba 100644
--- a/appveyor/test_task.bat
+++ b/appveyor/test_task.bat
@@ -89,9 +89,23 @@ if not exist "%PHP_BUILD_CACHE_ENCHANT_DICT_DIR%\en_US.aff" (
 mkdir %LOCALAPPDATA%\enchant\hunspell
 copy %PHP_BUILD_CACHE_ENCHANT_DICT_DIR%\* %LOCALAPPDATA%\enchant\hunspell
 
-set TEST_PHPDBG_EXECUTABLE=%PHP_BUILD_OBJ_DIR%\Release
-if "%THREAD_SAFE%" equ "1" set TEST_PHPDBG_EXECUTABLE=%TEST_PHPDBG_EXECUTABLE%_TS
-set TEST_PHPDBG_EXECUTABLE=%TEST_PHPDBG_EXECUTABLE%\phpdbg.exe
+set PHP_BUILD_DIR=%PHP_BUILD_OBJ_DIR%\Release
+if "%THREAD_SAFE%" equ "1" set PHP_BUILD_DIR=%PHP_BUILD_DIR%_TS
+
+mkdir %PHP_BUILD_DIR%\test_file_cache
+rem generate php.ini
+echo extension_dir=%PHP_BUILD_DIR% > %PHP_BUILD_DIR%\php.ini
+echo opcache.file_cache=%PHP_BUILD_DIR%\test_file_cache >> %PHP_BUILD_DIR%\php.ini
+if "%OPCACHE%" equ "1" echo zend_extension=php_opcache.dll >> %PHP_BUILD_DIR%\php.ini
+rem work-around for some spawned PHP processes requiring OpenSSL
+echo extension=php_openssl.dll >> %PHP_BUILD_DIR%\php.ini
+
+rem remove ext dlls for which tests are not supported
+for %%i in (imap ldap oci8_12c pdo_firebird pdo_oci snmp) do (
+	del %PHP_BUILD_DIR%\php_%%i.dll
+)
+
+set TEST_PHPDBG_EXECUTABLE=%PHP_BUILD_DIR%\phpdbg.exe
 
 mkdir c:\tests_tmp
 
diff --git a/ext/com_dotnet/tests/bug77578.phpt b/ext/com_dotnet/tests/bug77578.phpt
index 2bf2cbf2c0303..abb68cc163f4f 100644
--- a/ext/com_dotnet/tests/bug77578.phpt
+++ b/ext/com_dotnet/tests/bug77578.phpt
@@ -9,7 +9,7 @@ com_dotnet
 $php = PHP_BINARY;
 $ini = php_ini_loaded_file();
 $iniopt = $ini ? "-c $ini" : '';
-$command = "$php $iniopt -d com.autoregister_typelib=1 -r \"new COM('WbemScripting.SWbemLocator');\"";
+$command = "$php $iniopt -d extension=com_dotnet -d com.autoregister_typelib=1 -r \"new COM('WbemScripting.SWbemLocator');\"";
 exec($command, $output, $status);
 var_dump($output, $status);
 ?>
diff --git a/ext/exif/tests/bug68547.phpt b/ext/exif/tests/bug68547.phpt
index 27ed054bbed38..6a279394f9595 100644
--- a/ext/exif/tests/bug68547.phpt
+++ b/ext/exif/tests/bug68547.phpt
@@ -1,6 +1,7 @@
 --TEST--
 Bug #68547 (Exif Header component value check error)
 --EXTENSIONS--
+mbstring
 exif
 --FILE--
 <?php