# Mongoose FAQ ### PHP doesn't work: getting empty page, or 'File not found' error The reason for that is wrong paths to the interpreter. Remember that with PHP, correct interpreter is `php-cgi.exe` (`php-cgi` on UNIX). Solution: specify full path to the PHP interpreter, e.g.: mongoose -cgi_interpreter /full/path/to/php-cgi ### Mongoose fails to start If Mongoose exits immediately when run, this usually indicates a syntax error in the configuration file (named `mongoose.conf` by default) or the command-line arguments. Syntax checking is omitted from Mongoose to keep its size low. However, the Manual should be of help. Note: the syntax changes from time to time, so updating the config file might be necessary after executable update. ### Embedding with OpenSSL on Windows might fail because of calling convention To force Mongoose to use `__stdcall` convention, add `/Gz` compilation flag to the Visual Studio project settings.