Enable Copy & Paste when using VM Remote Console in ESX 4.1
To enable Copy & Paste option when using VM Remote Console in ESX 4.1:
1. Log into a vCenter Server system using the vSphere Client and power off the virtual machine.
2. Select the virtual machine, on the Summary tab click Edit Settings.
3. Navigate to Options > Advanced > General and click Configuration Parameters.
4. Click Add Row and type the following values in the Name and Value columns:
isolation.tools.copy.disable – false
isolation.tools.paste.disable – false