RDS 2012 R2 - Hide ( NOT Restrict) client drives from File Explorer Remote App

I have built an RDS 2012 R2 Server. The client will use it mostly through the RDWeb Apps.
We want to enable Copy/Paste of files between the Client and Server (so Drive redirection should be enabled as only Clipboard doesn't work with copying files) but I don't want them to see in File Browser all the redirected drives. They should only be able to view the Server's Mapped Drives. The Server's Local Drives are hidden. Any ideas?
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Dirk KotteSECommented:
I use the "Hide Drives" GPO to hide the local server-drives.
-> User Configuration -> Administrative Templates -> Windows Components -> Windows Explorer --> Hide these specified drives in My Computer

XoRdAuthor Commented:
Hi dkotte,

The local Server drives of the Server are already hidden.
I want to hide the Redirected Drives of the client.
Dirk KotteSECommented:
as described within the article you can hide any drive you need.
but you should know the possible drive letters.

as i start with citrix (many years ago) i use registry keys to hide drives.
calculate these keys is simple with hidecalc from dabcc.

current versions build GPO templates also.
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XoRdAuthor Commented:
These are Redirected Drives and are not actual Drive letters. See pic below:
I need to hide these without preventing access to them. If I disable redirection copy paste between the client and server doesn't work, so i just need to hide them from appearing there.
Dirk KotteSECommented:
removing the registry keys within:
remves the entries from the explorer windows.
see: http://discussions.citrix.com/topic/300387-hiding-mapped-client-drives-content-redirection/

the connection stay active ...
you can check this with "net use"
you may also map the drives now "net use f: \\cilent\f$"
XoRdAuthor Commented:
Again, these are NOT Mapped Drives. They don't have drive letters.
Dirk KotteSECommented:
check the article from post above...
XoRdAuthor Commented:
No resolution.

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XoRdAuthor Commented:
No solution has been provided.
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Windows Server 2012

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