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url: /flow/guide/getting-started/components-of-flow/supporting-components.md
---

# Supporting Components

Within the *Program Folder* are several supporting applications / files. These support the operation of Flow.

### Database Drivers

The database drivers facilitate direct access to different database platforms via the platforms client library. This ensures high speed access to databases.

**dbexpdb2.dll** provides access to IBM DB2

**dbexpinf.dll** provides access to Informix

**dbexpint.dll** provides access to Interbase

**dbexpmss.dll** provides access to MS SQL Server and SQL Compact

**dbexpmysql.dll** provides access to MySQL databases

**dbexpodbc.dll** provides access to ODBC data sources

**dbexpora.dll** provides access to Oracle databases

**dbexppge.dll** provides access to PostgreSQL databases

**dbxasa30.dll** provides access to Sybase SQL Anywhere

**dbxase30.dll** provides access to Sybase Enterprise

**libpq.dll** is the PostgreSQL client library. Provided to simply installation.

**midas.dll** provides in memory data sets for local data operations

**oledbexpress.dll** provides access to ADO and Jet databases like MS Access

### SSL Drivers

These drivers support secure connections via SSL. These drivers are part of the OpenSSL library.

**libeay32.dll**

**libssl32.dll**

**ssleay32.dll**

### INI Files

**Connections.ini** contains a list of the configuration databases available on the computer. These can be edited from the Flow login screen by selecting Setup Connections.

**Flow.ini** contains some basic setting. These settings are also stored in the configuration database but if changed here can be used to alter the Flow configuration.

### Plugins

\*.fpi files are custom plugins created by third parties for use with Flow. Custom plugins provide added functionality to actions. Flow provides some standard plugins on its web site.

### Wsdl Proxy Generation

**Wsdl.exe** supports the generation of C# proxies from WSDL files.

### XSD Schema Inference

**Infer.exe** and **XSDInfer.dll** support the inference of XSD schemas from XML instances.

### XML to object classes

**XSDObjectGen.exe** and **XSDObjectGenLib.dll** supports conversion of XML to C# classes.

### Other

**FloMenu.dll** driver provides hooks into the Windows context menus when right clicking certain file types. On selected file types configured in General Setup a option will appear in the right click menu to process that file with Flow.

**Reset Flow.bat** is a simple script file that resets all Flow applications running on a machine. It is a quick method to restart the Flow system.

**msvcr71.dll** is the Microsoft C Runtime and is required on some computers