Receiver4.1以上 通过http 方式访问VDI

      Citrix 新的版本Receiver4.1以上，PNAgent默认都是通过https访问方式，如果通过http方式，则需要修改注册表

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Citrix\Dazzle]  "AllowAddStore"="A"

To be able to add a store that is configured in StoreFront with a TransportType of HTTP,
1. Under HKLM\Software\Citrix\Dazzle, set AllowAddStore value to A in order to allow users to add non-secure stores.

http://support.citrix.com/article/CTX134341