Copying files over network - powershell

Question

OK so below is my little script that I have come up with that should copy files from my local drive to a remote server using a local server admin user.
$User = "SERVER-NAME\MyUser"
$Password = "Password"
$net = new-object -ComObject WScript.Network
$net.MapNetworkDrive("X:", "\\SERVER-NAME\c$\MyTestFolder\", $false, $User, $Password)
Copy-Item -Path "D:\Path\To\Copy\From" -Destination "X:\" -Recurse -Force -PassThru -Verbose
For some reason I am getting the following error, even though the server is reachable from my machine:
Exception calling "MapNetworkDrive" with "5" argument(s): "The network path was not found."

Answer 1

So it seems that the script is able to copy files only if the folder was actually shared over the network (Folder Properties -> Sharing -> Advanced Sharing). No actual remote access to a file system (which is kinda disappointing).
Here's the simplified version of the script I ended up with:
$User = "SERVER-NAME\AdminUser"
$Password = "Password"
$net = new-object -ComObject WScript.Network
$net.MapNetworkDrive("x:", "\\SERVER-NAME\TestFolder", $false, $User, $Password)
Copy-Item -Path "D:\Path\To\Copy\From" -Destination "x:\" -Recurse -Force -PassThru
$net.RemoveNetworkDrive("x:", 0)

Answer 2

try to create drive with new-psdrive, like this:
$userCRED = "SERVER-NAME\MyUser"
$pass="Password"
$passCRED = ConvertTo-SecureString -String $pass -AsPlainText -Force
$cred = new-object -typename System.Management.Automation.PSCredential -argumentlist $userCRED, $passCRED
$DestinationExport="\\SERVER-NAME\c$\MyTestFolder"
New-PSDrive -Name X -PSProvider filesystem -Root $DestinationExport -Credential $cred
Copy-Item -Path "D:\Path\To\Copy\From" -Destination "X:\" -Recurse -Force -PassThru -Verbose
Remove-PSDrive -Name X