Troodon: you mean: modify the PATH variable on system, where PostgreSQL server is installed? i don't have problem on that system. i have problem with system where Postgre is not installed. i know that installing and uninstalling postgre on that system will solve this problem, but when i want to distribute my app, that's not a good idea for users. i suppose they won't be happy to install Postgre on every computer they need to run the application...
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i noticed that the application is working on systems with xampp too...
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i tried to copy all libs from bin folder of the server and add the directory to PATH variable, the problem remains