OOP met word

<?php
ini_set("error_handling", 1);
error_reporting(E_ALL);

class PHPtoWORD
{
	// Defining filepath and extension
	var $FilePath = "C:/";
	var $FileExt = "doc";
	
	// Making vars for filename and text
	var $FileName;
	var $FileText;
	
	// Var for running the application (WORD)
	var $Application;
	
	function __construct()
	{
		if(!$this->Application = new COM("word.application"))
		{
			echo "[001] An error occured when launching the <i>Word Application</i>, either the application couldn't get launched, or <i>Microsoft Office</i> was not found!";
		}
		else
		{
			$this->Application->Visible = 1;
			if(!empty($this->FileText) && !empty($this->FileName))
			{
				$this->AddTextToFile();
			}
			//else
			//{
			//	echo "[002] An error occured, the text for the document could not be found!";
			//}
		}
	}
	
	function AddTextToFile()
	{
		$this->Application->Add();
		$this->Application->Selection->TypeText($this->filetext);
	}
	
	function SaveFile($FilePath = "C:/", $FileExt = "doc")
	{
		if(!$this->Application->Documents[1]->SaveAs("C:/test.doc"))
		{
			echo "[003] An error occured, the file could not be saved!";
		}
		else
		{
			$this->ExitApplication();
		}
	}
	
	function ExitApplication()
	{
		$this->Application->Quit();
		$this->Application = NULL;
	}
	
	function SetFileName($filename)
	{
		if(!empty($filename))
		{
			$this->FileName = $filename;
		}
		else
		{
			echo "[004] An error occured, the file's name could not be changed!";
		}
	}
	
	function SetFileExt($fileext)
	{
		if(!empty($fileext))
		{
			$fileext = strtolower($fileext);
			if($fileext == "doc" || $fileext == "docx")
			{
				$this->FileExt = $fileext;
			}
			else
			{
				echo "[005] An error occured, the file's extension is unknown, or not allowed!";
			}
		}
		else
		{
			echo "[006] An error occured, the file's extension could not be changed!";
		}
	}
	
	function SetFileText($filetext)
	{
		if(!empty($filetext))
		{
			$this->FileText = $filetext;
		}
		else
		{
			echo "[007] An error occured, the text for the file could not be set!";
		}
	}
}

$PHP2WORD = new PHPtoWord();
$PHP2WORD->SetFileName('JUSTATEST');
$PHP2WORD->SetFileText('BLAHBLAHBLAHALVALHASDFL');
$PHP2WORD->SetFileExt('DOC');

$PHP2WORD->SaveFile("C:/", "doc");
?>

Fatal error: Uncaught exception 'com_exception' with message '<b>Source:</b> Microsoft Word<br/><b>Description:</b> Het gevraagde lid van de collectie bestaat niet.' in C:\wamp\www\phpword\index.php:47 Stack trace: #0 C:\wamp\www\phpword\index.php(47): PHPtoWORD::SaveFile() #1 C:\wamp\www\phpword\index.php(113): PHPtoWORD->SaveFile('C:/', 'doc') #2 {main} thrown in C:\wamp\www\phpword\index.php on line 47

<?PHP	if(!$this->Application->Documents[1]->SaveAs("C:/test.doc"))
{
	echo "[003] An error occured, the file could not be saved!";
}
?>