PHP 8.4.20, Windows binary, php_curl.dll, php_intl.dll fail to load

[tsimmons]

Description

After upgrading to 8.4.20 from 8.4.19, the following is logged:

PHP Warning: PHP Startup: Unable to load dynamic library 'php_curl.dll' (tried: D:\PHP\ext\php_curl.dll (The specified module could not be found), D:\PHP\ext\php_php_curl.dll.dll (The specified module could not be found)) in Unknown on line 0

Even when running PHP from the command line using:

D:\PHP\php.exe -m

The file D:\PHP\ext\php_curl.dll exists and has proper permissions. Replacing php_curl.dll with the one from 8.4.19 solves the issue.

In addition, starting with 8.4.18 and continuing through 8.4.20, the same issue exists with php_intl.dll.

PHP Warning: PHP Startup: Unable to load dynamic library 'php_intl.dll' (tried: D:\PHP\ext\php_intl.dll (The specified module could not be found), D:\PHP\ext\php_php_intl.dll.dll (The specified module could not be found)) in Unknown on line 0

PHP Version

PHP 8.4.20 (cli) (built: Apr  8 2026 08:27:36) (NTS Visual C++ 2022 x64)
Copyright (c) The PHP Group
Built by The PHP Group
Zend Engine v4.4.20, Copyright (c) Zend Technologies
    with Zend OPcache v8.4.20, Copyright (c), by Zend Technologies

Operating System

Windows Server 2016