Exontrol's exThumbnail component provides thumbnail views for your files. Thumbnails are reduced-size versions of pictures, used to make it easier to scan and recognize them, serving the same role for images as a normal text index does for words.
In order to have ExploreFromHere method you need to handle the KeyDown event, and disable pressing the Backspace key once the browse folder is your root as in the following VB sample:
Private Sub ExShellView1_KeyDown(KeyCode As Integer, Shift As Integer)
If (KeyCode = vbKeyBack) Then
If (ExShellView1.BrowseFolder.Path < "\\tsclient") Then
KeyCode = 0
End If
End If
End Sub
Private Sub Form_Load()
ExShellView1.BrowseFolder = "\\tsclient\d\users"
End Sub
The sample browses initially for "\\tsclient\d\users" folder (network folder), and disables Backspace key once the control's BrowseFolder is "\\tsclient". In other words, the user can not go up than "\\tsclient" network folder.
Because of the UAC, and the Shell runs with standard user permissions, it can't see mapped drives which were configured by your application running with admin rights.
So, try the following workaround step by step:
Click Start, type regedit in the Start programs and files box, and then press ENTER.
Locate and then right-click the registry subkey HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System.
Point to New, and then click DWORD Value.
Type EnableLinkedConnections, and then press ENTER.
Right-click EnableLinkedConnections, and then click Modify.