First of all, thanks for your help.
I use a laptop at home for my own use and i'm on admin profile. I have checked on command prompt and can tell u that wsh is already enabled. I have wsh v.5.7.
I can tell you that i have tried numerous things with registry entries etc. Nothing works.
The problem, i think, is bigger than that. if you notice there's no one from Zimbra help desk helping out. You can only see members like us trying to help each other. I think people at Zimbra themselves do not know how to fix this. I have checked all the forums on WSH issues and not a single one fixes it. Anyway we need to try and it will hopefully come right one day. In the meantime i'm using my browser.