Please make sure you have the latest version of all of these Microsoft C++ Redistributable runtime libraries.
The 2008 Redist is used by wampmanager
The 2010 Redist is used by Apache
The 2012 Redist is used by Apache
FOR WAMP 32bit
Microsoft Visual C++ 2008 SP1 Redistributable Package (x86) [
www.microsoft.com]
Microsoft Visual C++ 2010 SP1 Redistributable Package (x86) [
www.microsoft.com]
If you are using WampServer 2.4
Microsoft Visual C++ 2012 [
www.microsoft.com]
And select vcredist_x86.exe
FOR WAMP 64bit
Microsoft Visual C++ 2008 Redistributable Package (x64) [
www.microsoft.com]
Microsoft Visual C++ 2010 SP1 Redistributable Package (x64) [
www.microsoft.com]
If you are using WampServer 2.4
Microsoft Visual C++ 2012 [
www.microsoft.com]
And select vcredist_x64.exe