Enable Generic USB direction for XenDesktop and XenApp 7.X
Generic USB redirection for XenDesktop 7.X requires some addition setup that may not have been required in older versions of Citrix.
NComputing highly recommends reviewing the following article for proper USB redirection implementation:
Additionally, it is important to note that Generic USB redirection is not supported by Citrix XenApp 7.6 using Server 2008 R2:
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