title: Trying to run an executable inside of the Program files (x86) directory in a dockerfile throws an error
body: <p>I am new to docker. Excuse my ignorance on this topic. </p>
  
  <p>I created a dockerfile with the intent on running the windows steam application. this is my docker file. </p>
  
  <pre><code># escape=`
  
  FROM mcr.microsoft.com/windows/servercore:ltsc2019 
  
  ADD https://steamcdn-a.akamaihd.net/client/installer/SteamSetup.exe c:\SteamSetup.exe
  RUN c:\SteamSetup.exe /S
  
  ENTRYPOINT ["c:\Program Files (x86)\Steam\Steam.exe"]
  </code></pre>
  
  <p>I verified that in the docker image Steam is installed at <code>c:\Program Files (x86)\Steam\Steam.exe</code> I attached to the docker with a powershell entrypoint and was able to run <code>"&amp; c:\Program Files (x86)\Steam\Steam.exe"</code> I cannot however get the docker image to launch steam on its own. I gt the error below. </p>
  
  <pre><code>PS C:\Users\AJWHEELE\Desktop\dockers\steamOS&gt; docker build -t ajwtech/windowstest .
  Sending build context to Docker daemon  2.048kB
  Step 1/4 : FROM mcr.microsoft.com/windows/servercore:ltsc2019
   ---&gt; 80e84fd280e2
  Step 2/4 : ADD https://steamcdn-a.akamaihd.net/client/installer/SteamSetup.exe c:\SteamSetup.exe
  Downloading [==================================================&gt;]  1.574MB/1.574MB
  
   ---&gt; Using cache
   ---&gt; d39ad50d3754
  Step 3/4 : RUN c:\SteamSetup.exe /S
   ---&gt; Using cache
   ---&gt; 33cdd5566dad
  Step 4/4 : ENTRYPOINT ["c:\Program Files (x86)\Steam\Steam.exe"]
   ---&gt; Running in 65027c59352a
  Removing intermediate container 65027c59352a
   ---&gt; e92095819109
  Successfully built e92095819109
  Successfully tagged ajwtech/windowstest:latest
  PS C:\Users\AJWHEELE\Desktop\dockers\steamOS&gt; docker run --rm -e DISPLAY=192.168.1.119:0 ajwtech/windowstest:latest
  The filename, directory name, or volume label syntax is incorrect.
  PS C:\Users\AJWHEELE\Desktop\dockers\steamOS&gt;
  </code></pre>
  
  <p>Also I am trying to get Steam to launch so that I can see the user interface. currently I am on a windows 10 machine trying to use VcXsrv. </p>
  
  <p>Thanks,</p>
  
  <p>Adam</p>