When the install program prompts ZD to start, I get the following error:

Script: file:///C:/Program%20Files%20(x86)/Zimbra/Zimbra%20Desktop/win32/prism/modules/WebAppProperties.jsm -> file:///C:/Users/Carl/AppData/Local/Zimbra/Zimbra%20Desktop/zdesktop.webapp/webapp.js:140

I have uninstalled and then tried reinstalling a couple of times but it always gives an error and fails to start ZD.

Windows 7, trying to install ZD 7.2