C#

using System.Io;
using Microsoft.Win32;

// Like I said before, DON'T use the Environment.CurrentDirectory.
// There is a large chance that it will not point to the directory
// your .EXE is in!
string path = Path.Combine( Application.StartupPath, "MyApp.exe" );

// Simplify your code a bit.  You don't need to create two variables for this.
// Also, using OpenSubKey with a single string parameter will only open the key
// in Read-Only mode.  You must supply a second parameter set to true, to get
// write access to the subkey.
RegistryKey myKey = Registry.LocalMachine.OpenSubKey( @"SOFTWARE\Microsoft\Windows\CurrentVersion\Run", true );
myKey.SetValue( @"MyApp", path );

myXsl.Load(ConfigurationSettings.AppSettings["XsltImportTransform"]);

using XSLT = System.Xml.Xsl.XslTransform;
// ...
public XSLT XslTransform
{
  get { return ConfigurationSettings.AppSettings["XsltImportTransform"]; }
}

<br />
public string XslImportTransform<br />
{<br />
 get {  return m_XslImportTransform; }<br />
 set {  m_XslImportTransform = value;<br />
        RuleBroken("** Error: Invalid XSLT file.",m_XslExportTransform == null); }<br />
}<br />

<br />
public void WriteFFWImportFile(string strFileToLoad, string strFileToSave)<br />
{<br />
   try<br />
    {<br />
       //create a transform object to apply load the xslt conversion template<br />
       XslTransform myXsl = new XslTransform(this.m_XslImportTransform);<br />
       myXsl.Load(this.m_XslImportTransform);<br />
    <br />
       //add the file imported from a parameter of the xslt<br />
       XsltArgumentList myArgs = new XsltArgumentList();<br />
       myArgs.AddParam("ParsolImport","",strFileToLoad);<br />
	<br />
       //create streams to allow us to write the file<br />
       Stream  fs	        = new FileStream(strFileToSave,FileMode.Create);<br />
       XmlWriter writer	= new XmlTextWriter(fs,System.Text.Encoding.Unicode);<br />
			<br />
       //load the import file<br />
       XmlDocument myXml = new XmlDocument();<br />
       myXml.Load(strFileToLoad);<br />
       myXsl.Transform(myXml,myArgs,writer,null);<br />
	<br />
       //dispose of in memory objects<br />
       writer.Close();<br />
       fs.Close();<br />
   }<br />
  catch(Exception ex)<br />
   {<br />
       //Log exception with Microsoft.ApplicationBlocks.ExceptionManager<br />
       ExceptionManager.Publish(ex);<br />
   }<br />
}<br />