Wait a little, there will be a Wampserver 2.5 update to Wampserver 3.0.3 without changing anything at the Apache, PHP or MySQL versions you use, but adding Apache 2.4.18, PHP 5.6.29 and 7.0.3 and MySQL 5.6.29. Then it will be possible to use all addons for Wampserver 3
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
Wait a little, there will be a Wampserver 2.5 update to Wampserver 3.0.3 without changing anything at the Apache, PHP or MySQL versions you use, but adding Apache 2.4.18, PHP 5.6.29 and 7.0.3 and MySQL 5.6.29. Then it will be possible to use all addons for Wampserver 3