For you information.

I've downgraded php version to 5.2.1 and get php_ssh2.dll functional.

I did try the downgrade but it did not work for me.

Maybe somebody care to explain this 'The operating system cannot run %1.' - error - would probably give us a hint too in finding an answer.

And helpful would be also to know where this might come from: "The ordinal 3874 could not be located in the dynamic link library
LIBEAY32.dll
"

What I allready tried:
a) php 5.2.2 / each lib available on the pecl site
b) php 5.2.1 / each lib available on the pecl site
b) php 5.2.3 / each lib available on the pecl site

result: none was a successful combination

I have PATH pointing to both php main dir and php/ext dir

I have also tried moving all the dlls in the main dir in the system32 dir same issue

Now I'm getting a bit dispaired because I see it did work for others and I'm starting to wonder if I did something worng just like thiagomp.

I checked the dependencies of both php.exe and the php_ssh2.dll - both come out clear.

I've got the same situation as asdfpaul at yahoo dot com with the same error message.

I use php 5.2.3 with Apache 2.2.4 with SSL in WinXP SP2.

Also tried to downgrade to 5.2.2 and 5.2.1 with no success.

I already tried php 5.2.5 with no success. I'm using Windows XP SP2.

I had the same problem. The solution was to copy the PHP bundled libeay32.dll file to the "bin" directory of Apache.

It seems that php_ssh2.dll needs a newer version of the DLL than the one included in Apache, and although you copy it to C:\WINDOWS or C:\WINDOWS\System32 it tries to load it from the Apache bin directory.