its written clearly on the download page...
WARNING : All the components of the v2.2 WampServer stack have been compiled with VC9 version of Microsoft compiler.
Earlier versions of Wampserver have been made with VC6 version of Microsoft compiler.
So, You can't mix components of 2.2 stack with previous version of Wampserver Stack components.
If you do it you will get an instable Wampserver.
all of the addons are vc6, so if you wanna use them , php and apache must be the same build
Steven Martin
stevenmartin99@gmail.comstevenmartin99@hotmail.comPampServer.com - [
pampserver.com]