# Session Scripts Configuration File
<a name="session-script-configuration-file"></a>

To locate the session scripts configuration file in a Windows instance, navigate to C:\$1AppStream\$1SessionScripts\$1config.json. On a Linux instance, navigate to /opt/appstream/SessionScripts/config.json. The file is formatted as follows.

**Note**  
The configuration file is in .json format. Verify that any text you type in this file is in valid .json format.

```
{
  "SessionStart": {
    "executables": [
      {
        "context": "system",
        "filename": "",
        "arguments": "",
        "s3LogEnabled": true
      },
      {
        "context": "user",
        "filename": "",
        "arguments": "",
        "s3LogEnabled": true
      }
    ],
    "waitingTime": 30
  },
  "SessionTermination": {
    "executables": [
      {
        "context": "system",
        "filename": "",
        "arguments": "",
        "s3LogEnabled": true
      },
      {
        "context": "user",
        "filename": "",
        "arguments": "",
        "s3LogEnabled": true
      }
    ],
    "waitingTime": 30
  }
}
```

You can use the following parameters in the session scripts configuration file.

***SessionStart/SessionTermination ***  
The session scripts to run in the appropriate session event based on the name of the object.   
**Type**: String  
**Required**: No  
**Allowed values:** **SessionStart**, **SessionTermination**

***WaitingTime***  
The maximum duration of the session scripts in seconds.  
**Type**: Integer  
**Required**: No  
**Constraints:** The maximum duration is 60 seconds. If the session scripts don't complete within this duration, they will be stopped. If you require a script to continue running, launch it as a separate process.

***Executables***  
The details for the session scripts to run.  
**Type**: String  
**Required**: Yes  
**Constraints:** The maximum number of scripts that can run per session event is 2 (one for the user context, one for the system context).

***Context***  
The context in which to run the session script.   
**Type**: String  
**Required**: Yes  
**Allowed values:** **user**, **system**

***Filename***  
The full path to the session script to run. If this parameter is not specified, the session script is not run.   
**Type**: String  
**Required**: No  
**Constraints:** The maximum length for the file name and full path is 1,000 characters.  
**Allowed values:** **.bat**, **.exe**, **.sh**  
You can also use Windows PowerShell files. For more information, see [Using Windows PowerShell Files](using-powershell-files-with-session-scripts.md).

***Arguments***  
The arguments for your session script or executable file.  
**Type**: String  
**Required**: No  
**Length constraints:** The maximum length is 1,000 characters.

***S3LogEnabled***  
When the value for this parameter is set to **True**, an S3 bucket is created within your Amazon Web Services account to store the logs created by the session script. By default, this value is set to **True**. For more information, see the *Logging Session Script Output* section later in this topic.   
**Type**: Boolean  
**Required**: No  
**Allowed values:** **True**, **False**