title: Two locations of gacutil.exe
body: <p>I'm developing on Windows 2008 R2 Server, 64 bit.
  I'm learning how to use gacutil.exe
  I found two copies of this file:</p>
  
  <pre><code>C:\Program Files\Microsoft SDKs\Windows\v6.0A\Bin\x64
  C:\Program Files\Microsoft SDKs\Windows\v6.0A\Bin\
  </code></pre>
  
  <p>I built a dll in VS2007, then I added a build post event, that calls gacutil.exe to transfer the dll to GAC.
  Does it matter which gacutil.exe I use?</p>