Getting error message: Install operation failed: The metadata or bundle option must be specified ?

This error popup up after running the following cmd when trying to update our VMware vSphere server.

 C:\Program Files\VMware\VMware vSphere CLI\bin>vihostupdate.pl -url https://192.168.xxx.xxx/sdk/webservice -i –bundle c:\temp\upgrade-from-esxi4.0-to-4.1-update01-348481.zip

I am using vSphere CLI 4.0 on a Windows 2003 server, logged in as a domain admin.

I tried several things I found off Google then it occured to me that it may be a issue with permissions. I restarted the CLI with Admin priviledges and Wamo!!

 Please wait patch installation is in progress …
The update completed successfully, but the system needs to be rebooted for the changes to be effective.

 So if your getting this error this is worth a try.

Cubert