# Accessing Documentation via the Keil μVision IDE

1. To open component-specific documentation in Keil μVision, you first need to click on the Manage Run-Time Environment icon (see the "Keil’s Mange Run-Time Environment Icon" figure).

Figure: Keil’s Mange Run-Time Environment Icon

2. Next, select the software component you are interested in (such as the Startup component chosen in the "Keil μVision Run-TIme Environment" figure).

Figure: Keil μVision Run-TIme Environment

3. Documentation can be opened by navigating to View > Open Books Window, or to Help > Open Books Window (see the "Keil Books Window Showing Documentation" figure).

Figure: Keil Books Window Showing Documentation

From this list you can open the documentation files, which are marked with green book icons.