• https://github.com/memcached/memcached
• https://github.com/nono303/win-build-scripts

‼️ Libevent

There is currently a runtime issue using libevent 2.1 (Cygwin build) on old Windows versions : _WIN32_WINNT <= 0X601

*** fatal error - couldn't dynamically determine load address for 'QueryUnbiasedInterruptTime' (handle 0x7FEFD430000), Win32 error 127
see https://gitter.im/msys2/msys2?at=5ce7e6578f019114aeab45c0

So, I provide memcached with both libevent versions:

• 2.0.22 <= Windows 7 & cygwin x64 3.4.X
• 2.1.12 > Windows 7 & cygwin x64 3.5.X

Don't hesitate to test both of them on your system and give me some feedback because I didn't find a lot of topics on it!

⚠️ AVX / AVX2 or not (SSE2)

• Check your cpu supported instructions with CPU-Z

  

⏩ TLS support

• Ff you need tls support, just choose *-tls.exe version

_:warning: Only x64 libevent 2.1 is maintained Older versions 1.4.25. 1.4.33 1.4.35 1.4.36 1.4.39 1.5 1.5.1 1.5.2 1.5.3 are available under tag memcache-1.5.3...

• x64

  • ✅ 1.6.39: libevent 2.1.12 2025-07-29
    • cygwin 3.7.0 gcc 16.0.0 openssl 3.0.17
  • ⏸️1.6.24: libevent 2.0.22 2024-02-29

• x86

  • ⏸️1.6.21: libevent 2.1.12 2023-07-03
  • ⏸️1.6.21: libevent 2.0.22 2023-07-23

x64

• ☝️ cygwin 3.X.Y
  • cygwin1.dll
• ☝️ libevent 2.X.Y
  • cygevent_core-2-X-Y.dll
  • cygevent_extra-2-X-Y.dll
  • cygevent_openssl-2-X-Y.dll
  • cygevent_pthreads-2-X-Y.dll
  • cygevent-2-X-Y.dll

⚠️ for TLS only

• openssl 3.X.Y
  • cygssl-3.dll
  • cygcrypto-3.dll
• zlib 1.3.1
  • cygz.dll

x86

• cygwin 3.3.6

  • cygwin1.dll

• ☝️ libevent 2.X.Y

  • cygevent_core-2-X-Y.dll
  • cygevent_extra-2-X-Y.dll
  • cygevent_openssl-2-X-Y.dll
  • cygevent_pthreads-2-X-Y.dll
  • cygevent-2-X-Y.dll

⚠️ for TLS only

• openssl 1.1.1s
  • cygssl-1.1.dll
  • cygcrypto-1.1.dll
• zlib 1.2.13
  • cygz.dll

⚠️ for x86 TLS only

• libgcc 11.3.0
  • cyggcc_s-1.dll

-d install is not anymore available. You might use nssm to install memcached as a Windows service:

1. copy nssm-2.25.0.exe corresponding to your system arch in memcached folder or somwhere in a Windows %PATH% folder

2. run theses command - changing absolute path C:\memcached corresponding to your config

   nssm-2.25.0.exe install memcached C:\memcached\memcached-avx.exe
   nssm-2.25.0.exe set memcached AppParameters "-vv -m 512 -I 256m"
   nssm-2.25.0.exe set memcached AppDirectory C:\memcached
   nssm-2.25.0.exe set memcached AppExit Default Restart
   nssm-2.25.0.exe set memcached AppNoConsole 1
   nssm-2.25.0.exe set memcached AppPriority ABOVE_NORMAL_PRIORITY_CLASS
   nssm-2.25.0.exe set memcached AppStderr C:\memcached\logs\memcached.log
   nssm-2.25.0.exe set memcached AppStopMethodSkip 6
   nssm-2.25.0.exe set memcached AppTimestampLog 1
   nssm-2.25.0.exe set memcached DisplayName memcached
   nssm-2.25.0.exe set memcached ObjectName LocalSystem
   nssm-2.25.0.exe set memcached Start SERVICE_AUTO_START
   nssm-2.25.0.exe set memcached Type SERVICE_WIN32_OWN_PROCESS