Apply filter to defines on which views the filter will affect.
Active event log view - if checked, the filter will be applied to current event log view only.
Event log view(s) on your choice lets you select event views to filter.

Event Types:

Information - if checked, Event Log Explorer will display/search for events logged by successful operations of major services.
Warning - if checked, Event Log Explorer will display/search for events that are not necessarily significant but may cause future problems.
Error - if checked, Event Log Explorer will display/search for events logged by significant problems.
Audit Success - if checked, Event Log Explorer will display/search for security access attempts that were successful.
Audit Failure - if checked, Event Log Explorer will display/search for security access attempts that were failed.

Source - Event Log Explorer will display/search for events logged by a specified software.

Category - Event Log Explorer will display/search for events of a certain category.

User - Event Log Explorer will compare User column with the specified text. The compare is not case-sensitive. If Substring check box is checked, Event Log Explorer will display/search for events that contains this criteria text in the User column.

Computer - Event Log Explorer will compare Computer column with the specified text. The compare is not case-sensitive. If Substring check box is checked, Event Log Explorer will display/search for events that contains this criteria text in the Computer column.

Event IDs - Event Log Explorer will display/search for events that match the specified Event IDs. If you want to specify multiple IDs, please use coma as a delimiter. To specify a range of IDs, use "-".
You can use "!" to specify the exception list of events. All events and event ranges following "!" will be considered as exceptions. E.g. 10,100-1000,2000-5000!250,500-600,3000-3200 will be equal 10, 100-249,251-499,601-1000, 2000-2999,3201-5000

Text in description - Event Log Explorer will display/search for events that contains the specified text in the event description. Tick RegExp checkbox if Text in description is a regular expression.

Date - if checked, Event Log Explorer will display/search for events logged between From and To dates.

Time - if checked, Event Log Explorer will display/search for events logged between From and To times.

Separately - if not checked, Event Log Explorer will behave as standard Windows Event Viewer: it will display/search for events that fall into date time interval (from From Date,Time to To Date, Time.
If checked, Event Log Explorer will display/search for events that fall into date interval (from From Date to To Date) and fall into time interval (from From Time to To Time). This can be helpful for example, when you want to check the events that were generated last week during the working time.

Display events for the last dd days yy hours - Event Log Explorer will display/search for the recent events logged during the last DD days and yy hours. Set these values to 0 to display all events.

Exclude - you can enable Exclude option for each clause. E.g. if you want to display all events except spooler events, check in the Source drop-down list "Spooler" and enable Exclude option next to the Source drop-down list.

Load button - allows you to load a saved filter/search criteria.

Save button - saves current filter/search criteria in a file.

OK button - closes this window and starts filtering/search process according to the specified criteria.

Cancel button - close this window.