The reason is not strictly WAMPServer's fault. Its becasue Microsofts MSVC 2012 C/C++ runtime will not install on XP or 2003 but Apache is compiled with VS2012. Hence it will not run.
As far as I know XP and Server 2003 are no longer supported by Microsoft.
The latest version of WAMPServer that will run on Server 2003 is WAMPServer 2.4
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(Windows 10 Pro 64bit) (Wampserver 3.3.4 64bit) Aestan Tray Menu 3.2.5.4
<Apache versions MULTIPE> <PHP versions MULTIPLE> <MySQL Versions MULTIPLE>
<MariaDB versions MULTIPLE> <phpMyAdmin versions MULTIPLE> <MySQL Workbench 8.0.23>Read The Manuals Apache --
MySQL --
PHP --
phpMyAdminGet your Apache/MySQL/mariaDB/PHP ADDONs here from the
WAMPServer alternate Repo-X-X-X-
Backup your databases regularly Here is How dont regret it later! Yes even when developing -X-X-X-