This resolves access denial errors caused by user changes to threads created by ASP. NET.

The user of the thread created by ASP. NET is changed from <identity impersonate = "true"/> to nt authoritynetwork service, causing "System. UnauthorizedAccessException" and "Access Denied"

Dim thr As Threading. Thread
Dim l As System. Security. Principal. WindowsIdentity

Function print ()
Thr = New Threading. Thread (AddressOf printAutoCAD)
Thr. Start ()
L = System. Security. Principal. WindowsIdentity. GetCurrent
End Function

Private Sub printAutoCAD ()
System. Security. Principal. WindowsIdentity. Impersonate (l. Token)
...
End Function