NoteHKLM\SYSTEM\CurrentControlSet\Services\EventLog\<Log-name>\<Source-name>
| Data type | Range | Default value |
|---|---|---|
| REG_EXPAND_SZ | Path and file name [; Path and file name] | (There is no default value for this entry.) |
Stores the location of the file that contains values for variables in the event description. This file is optional.
The descriptive text in the event message file can contain variables. Some variables (indicated by %n) are resolved by substituting data from the event record. Other variables (indicated by %%n) are resolved by substituting text from a parameter message file (ParameterMessageFile). The Event Log service locates the correct values, and then replaces the variables before displaying the text in the Description field in Event Viewer.
Note
The same file can be used as the value of EventMessageFile, CategoryMessageFile, and ParameterMessageFile.