Access a remote server's share folder using NET USE

PROBLEM:
I wanted to logon to a remote (web) server programmatically, but I didn't want to give rights to each individual user that would run the program or make the user map a drive to the share folder on the server.

SOLUTION:
Created 1 master user account on the server and gave it full rights to the share folder. This prevents users from accessing files through explorer, forcing them to go through the program to do any kind of file maintenance. I then created the following function to connect/disconnect to/from the web server:

VB Code:

Public Function LogonServer(bLogon As Boolean) As Boolean
    On Error GoTo Logon_Error
    
    LogonServer = True
    If bLogon Then
        'this creates a temporary (but hidden) share on the local machine to the web server
        'passing the credidentials
        Call ShellWait("net use \\servername\sharename masterpassword /user:domain\masterusername", 0)
        
        'test the connection, if it doesn't error, we're good
        Call Dir$("\\servername\sharename\", vbDirectory)
    Else
        'removes the connection
        Call ShellWait("net use \\servername\sharename /delete", 0)
    End If
    
    Exit Function
Logon_Error:
    If Err.Number = 52 Then
        'logon failed, return false
        LogonServer = False
        Resume Next
    End If
End Function

Here's the ShellWait piece of this, slap this in a module:

VB Code:

Private Type STARTUPINFO
    cb As Long
    lpReserved As String
    lpDesktop As String
    lpTitle As String
    dwX As Long
    dwY As Long
    dwXSize As Long
    dwYSize As Long
    dwXCountChars As Long
    dwYCountChars As Long
    dwFillAttribute As Long
    dwFlags As Long
    wShowWindow As Integer
    cbReserved2 As Integer
    lpReserved2 As Long
    hStdInput As Long
    hStdOutput As Long
    hStdError As Long
End Type
Private Type PROCESS_INFORMATION
    hProcess As Long
    hThread As Long
    dwProcessID As Long
    dwThreadID As Long
End Type
 
Private Declare Function WaitForSingleObject Lib "kernel32" (ByVal _
    hHandle As Long, ByVal dwMilliseconds As Long) As Long
 
Private Declare Function CreateProcessA Lib "kernel32" (ByVal _
    lpApplicationName As Long, ByVal lpCommandLine As String, ByVal _
    lpProcessAttributes As Long, ByVal lpThreadAttributes As Long, _
    ByVal bInheritHandles As Long, ByVal dwCreationFlags As Long, _
    ByVal lpEnvironment As Long, ByVal lpCurrentDirectory As Long, _
    lpStartupInfo As STARTUPINFO, lpProcessInformation As _
    PROCESS_INFORMATION) As Long
 
Private Declare Function CloseHandle Lib "kernel32" (ByVal _
    hObject As Long) As Long
 
Public Function ShellWait(Pathname As String, Optional WindowStyle As Long)
    Dim proc As PROCESS_INFORMATION
    Dim start As STARTUPINFO
    Dim ret As Long
    ' Initialize the STARTUPINFO structure:
    With start
        .cb = Len(start)
        If Not IsMissing(WindowStyle) Then
            .dwFlags = &H1
            .wShowWindow = WindowStyle
        End If
    End With
    ' Start the shelled application:
    ret& = CreateProcessA(0&, Pathname, 0&, 0&, 1&, _
            &H20&, 0&, 0&, start, proc)
    ' Wait for the shelled application to finish:
    ret& = WaitForSingleObject(proc.hProcess, -1& )
    ret& = CloseHandle(proc.hProcess)
End Function

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I do not take credit for the SHELLWAIT function. The LogonServer function however I do.
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