| Name | Type | Description | Required | 
|---|
| CategoryCount | Integer |                          The number of categories in CategoryMessageFile. CategoryMessageFile                         must be specified too.                      |   | 
| CategoryMessageFile | String |                          Name of the category message file. CategoryCount must be specified too.                         Note that this is a formatted field, so you can use [#fileId] syntax to                         refer to a file being installed. It is also written as a REG_EXPAND_SZ                         string, so you can use %environment_variable% syntax to refer to a file                         already present on the user's machine.                      |   | 
| EventMessageFile | String |                          Name of the event message file.                         Note that this is a formatted field, so you can use [#fileId] syntax to                         refer to a file being installed. It is also written as a REG_EXPAND_SZ                         string, so you can use %environment_variable% syntax to refer to a file                         already present on the user's machine.                      | Yes | 
| KeyPath | YesNoType |                          Marks the EventSource registry as the key path of the component it belongs to.                      |   | 
| Log | String | Name of the event source's log. | Yes | 
| Name | String | Name of the event source. | Yes | 
| ParameterMessageFile | String |                          Name of the parameter message file.                         Note that this is a formatted field, so you can use [#fileId] syntax to                         refer to a file being installed. It is also written as a REG_EXPAND_SZ                         string, so you can use %environment_variable% syntax to refer to a file                         already present on the user's machine.                      |   | 
| SupportsErrors | YesNoType |                          Equivalent to EVENTLOG_ERROR_TYPE.                      |   | 
| SupportsFailureAudits | YesNoType |                          Equivalent to EVENTLOG_AUDIT_FAILURE.                      |   | 
| SupportsInformationals | YesNoType |                          Equivalent to EVENTLOG_INFORMATION_TYPE.                      |   | 
| SupportsSuccessAudits | YesNoType |                          Equivalent to EVENTLOG_AUDIT_SUCCESS.                      |   | 
| SupportsWarnings | YesNoType |                          Equivalent to EVENTLOG_WARNING_TYPE.                      |   |