added Download-File function to Tools.ps1

added Install-VLC.ps1 script

Tools.ps1

@@ -155,14 +155,44 @@ Return [version]$Return.Trim('.')
 Function IsURLValid
 {
 param([Parameter(Mandatory=$true,ValueFromPipeline=$true)][string]$URL)
-$HTTPRequest = [System.Net.WebRequest]::Create($URL)
-$HTTPResponse = $HTTPRequest.GetResponse()
-$HTTPStatus = [int]$HTTPResponse.StatusCode
-$HTTPResponse.Close()
+Try
+{
+    $HTTPRequest = [System.Net.WebRequest]::Create($URL)
+    $HTTPResponse = $HTTPRequest.GetResponse()
+    $HTTPStatus = [int]$HTTPResponse.StatusCode
+    $HTTPResponse.Close()
+}
+Catch {}
 If ($HTTPStatus -eq 200) { Return $true }
 Else { Return $false }
 }
 
+Function Download-File
+{
+param(
+    [Parameter(Mandatory=$true,ValueFromPipeline=$true)][string]$URL,
+    [Parameter(Mandatory=$false,ValueFromPipeline=$false)][string]$File
+)
+$LogName = $MyInvocation.MyCommand
+If ( !($File) ) { $File = '{0}\{1}' -f $Env:TEMP, (Split-Path $URL -Leaf) }
+If ( IsURLValid $URL )
+{ 
+    If ( Test-Path $File )
+    {
+        Log "Deleting existing file: ""${File}""" -Name $LogName
+        Try { Remove-Item $File -Force }
+        Catch { $_.Exception.Message | Log -Name $LogName }
+    }
+    Log "Downloading ""${URL}"" to ""${File}""" -Name $LogName
+    Try { (New-Object System.Net.WebClient).DownloadFile($URL,$File) }
+    Catch { $_.Exception.Message | Log -Name $LogName }
+    If ( Test-Path $File )
+    { Return $File }
+    Else { Log "The file was downloaded but was immediately deleted" -Name $LogFile ; Return $false }
+}
+Else { Log "URL is not valid or file cannot be reached: ${URL}" -Name $LogName }
+}
+
 ## Function to compare current Windows version with a supplied version
 ## The value supplied must be a string and must include at least 1 decimal
 Function IsWindowsVersion
@@ -217,3 +247,4 @@ switch ( $(Get-CimInstance -ClassName Win32_OperatingSystem -Property OSArchitec
 ## Function to determine if the Powershell process is 64-bit or not
 Function Is64bitShell
 { If ( [System.Environment]::Is64BitProcess ) { Return $true } Else { Return $false } }
+