How to modify Work DIR for CQ5

While starting up author instance cq-author-4502.jar using JDK, instead of using the same directory's crx-quickstart, it uses work dir default as 'c:\windows\system32', which I can see in the popup 'CQ% WCM Starting up...Waiting for server startup... Work dir c:\Windows\system32\crx-quickstart'.

How do we override the default behavior of Adobe CQ5 in 5.4 version. I wanted to use work dir as current "crx-quickstart" folder, where the cq-author-4502.jar exists instead of "c:\windows\system32\crx-quickstart" folder. Please advice.