WampServer 2.5 includes, among others , Apache 2.4.9 and PHP 5.5.12 that are "compiled" with Visual C++ 2012, more commonly referred to as VC11.
The VC11 library will not run on Windows XP, even SP3 or Windows Server 2003, so the minimum system requirements to run WAMPServer 2.5 are: Windows 7 SP1 ,
Windows 8/8.1 ,
Windows Vista SP2 ,
Windows Server 2008 R2 SP1 ,
Windows Server 2012/R2.
A binary compiled using VC11 can load modules compiled with VC11, VC10 or VC9, but is totally incompatible with modules compiled using VC6.
This means that only Apache, PHP or MySQL versions compiled with VC9+ can be retrofitted, which excluded PHP 5.2.x, Apache 1.3 and 2.0 branches.
WampServer 2.5 uses symbolic links and junctions and will only work with NTFS formatted disks or partitions and not with FAT32 drives.
You should also ensure that you have the latest versions of the VC11 C++ runtime: [ [www.microsoft.com] ]
Note: If you use a Windows 64-bit version, you must install both 32 and 64 bits versions of the VC11 (2012) runtime. The vcredist_arm.exe file only concerns ARM and Windows RT, for example the shelves SURFACE processors.
None of the addons available for download are compatible with WAMPServer 2.5
However it is perfectly possible to manually add versions of Apache, PHP and MySQL. See the forum for help on this.
Visual C++ Redistributable for Visual Studio 2012 Update 4
这里却发现一个矛盾的地方，VC 11的官方下载处，明确说明，VC11支持 Windows Server 2003的系统。这作何解释呀？
系统要求： 支持的操作系统
Windows 7 Service Pack 1, Windows 8, Windows 8.1, Windows Server 2003, Windows Server 2008 R2 SP1, Windows Server 2008 Service Pack 2, Windows Server 2012, Windows Vista Service Pack 2, Windows XP
