Windows inputs in Splunk, particularly those that involve more advanced data collection capabilities beyond simple file monitoring, can utilize scripts or custom inputs. These are typically referred to as Modular Inputs.
Modular Inputs are designed to be configurable via the Splunk Web UI and can collect data using custom or predefined scripts, handling more complex data collection tasks. This is the type of input that is used for collecting Windows-specific data such as Event Logs, Performance Monitoring, and other similar inputs.