In Horizon 7 version 7.0.1 and later and Horizon Client 4.1 and later, the clipboard memory size is configurable for both the server and the client.

When a PCoIP or VMware Blast session is established, the server sends its clipboard memory size to the client. The effective clipboard memory size is the lesser of the server and client clipboard memory size values.

To set the client clipboard memory size, add the following parameter to any one of three configuration files: ~/.vmware/config, /usr/lib/vmware/config, or /etc/vmware/config. 

mksvchan.clipboardSize=value

value is the client clipboard memory size in kilobytes (KB). You can specify a maximum value of 16384 KB. If you specify 0 or do not specify a value, the default client clipboard memory size is 8192 KB (8 MB).

Horizon Client looks for the clipboard memory size in the configuration files in the following order and stops as soon as a non-zero value is found.

  1. /usr/lib/vmware/config
  2. /etc/vmware/config
  3. ~/.vmware/config

A large clipboard memory size can negatively affect performance, depending on your network. VMware recommends that you do not set the clipboard memory size to a value greater than 16 MB.