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Uniserver cannot find php_gpsql.dll nor php_pdo_pgsql.dll


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I am on Uniform Server 11.1.15. I have PHP versions 5.3 and 5.4 loaded and switch between them, but normally use PHP version 5.3. I try to enable the php_pgsql and php_pdo_pgsql extensions, but when I start Apache, I get the following errors:


PHP Startup: Unable to load dynamic library 'C:/Users/John/Desktop/UniServerZ/core/php53/extensions\php_pdo_pgsql.dll' - The specified module could not be found.

PHP Startup: Unable to load dynamic library 'C:/Users/John/Desktop/UniServerZ/core/php53/extensions\php_pgsql.dll' - The specified module could not be found.


I checked the physical directory where the error message is referring to and the modules are, in fact, there. Can anyone give me an idea of how to get Uniserver to activate them?


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In all older versions of PHP libpq.dll is missing.

Download the latest module version as appropriate:






To enable php_pdo_pgsql.dll and php_pgsql.dl use one of the following methods:


From UniController:

Select the PHP version

Select the configuration file

Select “Edit Basic and Modules” from this select “PHP modules Enable/Disable”

In the pop-up menu click pgsql.dll and php_pgsql


Alternatively manually edit configuration files:

For each PHP version edit the following configuration files:





Locate these lines:


Change to:


Restart servers.


All the best


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