Zip unarchival

Add-Type -AssemblyName System.Windows.Forms # Only need this once

Function get-files{
    $FileBrowser = New-Object System.Windows.Forms.OpenFileDialog -Property @{
        InitialDirectory = '\\networkshare\someshare'
        Filter = 'zip (*.zip)|*.zip'
        Multiselect = $true
      }
    [void]$FileBrowser.ShowDialog()
    $FileBrowser.FileNames
  }

Function Move-files {
    $FolderBrowser = New-Object System.Windows.Forms.FolderBrowserDialog -Property @{
        SelectedPath = 'D:\TMP'
      }
    [void]$FolderBrowser.ShowDialog()
    $FolderBrowser.SelectedPath
  }

# Define Vars upfront
 $openfile = get-files
 $movefile = Move-files
 $tempFldr = "D:\TMP"

# Make sure the TMP folder exists first
 IF (!(Test-Path D:\TMP)) { New-Item -Path D: -Name TMP -Type Directory | Out-Null}

# Multiselect is true above, so if there are multiple zips, this will handle each, one at a time
 Foreach ($file in $openfile) {
    $folder = ($file.Split(".")).split("\")[1]
    Expand-Archive -Path $file -DestinationPath $tempFldr -Force
    New-Item -Path $movefile -Name $folder -ItemType Directory | Out-Null
    Copy-Item $tempFldr\*.* -Exclude *.zip -Destination $movefile\$folder
    Remove-Item E:\TMP -Recurse
  }