Steps:
1. JIRA 4.0 has concept of JIRA_HOME.
2. Before the user starts the startup.bat script, he/she needs to set the JIRA_HOME path in jira-application.properties
3. Try to setup the JIRA_HOME path with frontslash(windows default). c:\xyz\....

Result:
1. It give error message when user start the JIRA server.

Expected:
1. Java needs path in backslash(Mac way). Providing path like c:/xyz/... solves the issue.
2. We need to document this to avoid confusion among windows user.