# Creating the Application.cfm File

The special application-wide page called `Application.cfm` defines application-level settings and functions such as:

- The application name
- Client state management options
- Application and session variables
- Default variables
- Custom error pages
- Data sources
- Default style settings
- Exclusive locks
- Other application-level constants

Note | Because UNIX is case sensitive, the application framework file must be spelled with an initial capital, `Application.cfm`, for applications that run on UNIX platforms.

## Naming the application

In ColdFusion, you define an application by giving it a name using the CFAPPLICATION tag. By using the same application name in a CFAPPLICATION tag, you define a set of pages as being part of the same logical application.

Note | The value you set for the NAME attribute in CFAPPLICATION is limited to 64 characters.

| To name the application:

1. Open Studio and create a new file.
2. Modify the file so that it appears as follows:

       <!--- This example illustrates CFAPPLICATION --->

       <!--- Name the application --->
       <CFAPPLICATION NAME="SearchApp">

3. Save the file as `Application.cfm` in the root directory of your application framework.