How to utilize IPMI on Windows?
SuperMicro has a Java-based IPMIView tool that you might find useful.
In my experience, DRACs are easiest to manage via their telnet or ssh interface - the other tools tend to be a bit flaky.
This page is linux-oriented but provides a decent overview of IPMI tools.
Dell has BMC Utility package that install the tools in windows, http://dell.to/L13j0x, and allows you start/stop, read the BMC logs, etc...