VMware Horizon View HTML Access Web Client Help : Product Limitations

Product Limitations
Although the Web client provided by VMware Horizon View HTML Access allows you to access a View desktop without having to install any software, features are limited.
The following features, which are supported with the native Horizon View Client, might have some limitations when you use the Web client provided by HTML Access.
Internet Explorer 9 does not support many of the HTML5 features proved with the HTML Access 2.2 release. The features that are not supported by Internet Explorer 9 include audio playback, clipboard redirection, mouse cursor changes, and full-screen mode, among others.
Some of the unavailable types are the busy cursor, the drag cursor, and the resize cursor. For example, on Internet Explorer browsers and mobile device browsers, when you move the mouse pointer over a link on a Web page in a View desktop, the mouse pointer does not change to a hand icon. If you move the mouse pointer to the edge of a window, the pointer does not change to resizing arrows. If you are editing text, the pointer does not change to a cursor. You can still perform the actions, but the pointer remains a pointer.
Some keys and key combinations do not work in a View desktop. For more information, and for information about using international keyboards, see Keyboards and Monitors.