title: 7zs.sfx unsupported method
body: <p>I have setup project that I need to sfx him .</p>
  
  <p>first I zip the .msi and .exe files :</p>
  
  <pre><code>%path7zip% a "%~dp0% %setup.7z" "%~dp0% %Output\Setup\*"
  </code></pre>
  
  <p>that work fine .</p>
  
  <p>then I sfx the 7z file :</p>
  
  <pre><code>copy /b %path7zs% + "%~dp0% %config.txt" + "%~dp0% %Setup.7z" "%~dp0% %     
  Output\Setup\MySetup.exe"
  </code></pre>
  
  <p>my config file is : </p>
  
  <pre><code>;!@Install@!UTF-8!
  Title="my title"
  Progress="no"
  GUIFlags=""
  OverwriteMode="0"
  InstallPath="%TEMP%"
  ExtractPathText="Select extraction path"
  ExtractPathTitle="my title"
  ExtractTitle="Extracting"
  ExtractDialogText=""
  ExtractCancelText="Abort"
  RunProgram="\"%%T\\setup.exe\""
  ;!@InstallEnd@!
  </code></pre>
  
  <p>I get the MySetup.exe file but when I try to open it I get :
  7-zip: unsupported method.
  Any ideas?
  Thank you</p>