Wamp Server 2.2 Windows 7 64-bit and curl not working side-by-side configuration incorrect

If your having problems with php curl not starting using the following wamp installation:

wampserver2.2e-php5.4.3-httpd2.2.22-mysql5.5.24-x64.exe on Windows 64bit.

OR

wampserver2.2e-php5.4.3-httpd-2.4.2-mysql5.5.24-x64.exe on Windows 64bit.

Getting curl failed to start because the side-by-side configuration incorrect?

Getting the following error in the event log?

Activation context generation failed for “c:\wamp\bin\php\php5.4.3\ext\php_curl.dll”. Dependent Assembly Microsoft.VC90.DebugCRT,processorArchitecture=”amd64″,publicKeyToken=”1fc8b3b9a1e18e3b”,type=”win32″,version=”9.0.21022.8″ could not be found. Please use sxstrace.exe for detailed diagnosis.

Download the following:

http://www.mediafire.com/file/3ay381k3cq59cm2/php_curl-5.4.3-VC9-x64.zip

Or replace the entire PHP folder using

http://www.mediafire.com/file/onpvka3h1gymwa6/php-5.4.3-Win32-VC9-x64.zip

Replace the old php_curl.dll with the new one in \wamp\bin\php\php5.4.3\ext\

And, try starting Apache again.

Hope this helps someone!

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21 Responses to Wamp Server 2.2 Windows 7 64-bit and curl not working side-by-side configuration incorrect

  1. Husain Sutarwala says:

    We tried your solution but no luck. It still throws the same error. Will appreciate your help. We are using Windows Server 2008 R2.

  2. pioneear says:

    First double check you are using php 5.4.3 64 bit

    More dlls can be found here if you can’t find the one you need.

    http://www.anindya.com/php-5-4-3-and-php-5-3-13-x64-64-bit-for-windows/

    The most stable version of wamp is 2.1 (Download WAMP 2.1 64bit). It has curl that works and php_zip.dll thats missing from all the 2.2 versions.

    http://sourceforge.net/projects/wampserver/files/WampServer%202/WampServer%202.1/WampServer2.1d-x64.exe/download

    • newtophp says:

      removed the latest version of wamp and installed wamp with php 5.3.13 apache 2.2.22. got the php_curl.dll from Anindya site “php_curl-5.3.13-VC9-x64.zip”. It worked after hours of swaeting finally.
      Thanks!!!!

  3. Ryan says:

    Brilliant! Thanks for the post. I’m using PHP 5.3.13 on Win 7 x64 and updating the curl.dll from the above link worked perfectly.

  4. Berg Coy says:

    Hi,

    I wonder why isn’t working with me.

    Can you please help me.

    WarmpServer: wampserver2.2e-php5.3.13-httpd2.2.22-mysql5.5.24-x64
    Moodle: moodle-2.3

    OS: Windows 7 Pro X64 bit

    I hope you can help me figure this out. I tried the instruction above but it’s not working.

    Berg

  5. mitra says:

    Thanks it worked for me

  6. Thank you! I was looking for this solution for 3 hours with no luck.

  7. Joe says:

    Awesome, been hunting around for a solution for a little while now. Thank you.

  8. Great!! That worked perfect.

    My problem started yesterday, i had wamp 2.2e(apache 2.2) and tried to enable curl but it didnt work, then i tried to install wamp with apache 2.4 but still couldn’t enable curl.

    The solution for me was to replace the dll with the one in your link:
    http://www.mediafire.com/file/onpvka3h1gymwa6/php-5.4.3-Win32-VC9-x64.zip

    Thank you so much!
    Very good of you to add alot of details about the problem, that way i could find you on google 🙂

  9. mangakah says:

    Thank you very much! It worked.

  10. Ali says:

    Works perfectly!

    Just replace the php_curl.dll file.

    Thanks.

  11. Dave says:

    Worked for me!

  12. Kirk says:

    FWIW, my problem was that I had upgraded PHP from 5.2.x to 5.3.13. After the upgrade, I had to specifically tell curl to use the SSLv3 protocol (it defaults to SSLv2) as follows:

    curl_setopt($ch, CURLOPT_SSLVERSION, 3);

  13. swingbrian says:

    Thank you for this! It works great!

  14. noumanabbas says:

    There seems to be a bug somewhere. If you are experiencing this on Win 7 64 bit then try installing apache addon version 2.2.9 and php addon version 5.3.1 and switching to those in WAMP and then activating the CURL extension. That worked for me.

  15. Umar Bilal says:

    thanks…
    Replacing the old php_curl.dll with the new one in \wamp\bin\php\php5.4.3\ext\ works for me on curl error.

  16. cephus7777 says:

    Thanks so much for this. I must have read 15 forums before this one to find this answer. ☺

  17. Doug says:

    Thanks that worked! 🙂

  18. abhi says:

    Thanx a TONNNNNNNNNNNN man .. it worked for me by replacing that curl.dll file (535 KB) one
    love you bro

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