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<blockquote data-quote="Skydiver" data-source="post: 16157" data-attributes="member: 11639">&quot;explorer.exe&quot; is the the Windows File Explorer process. When you start &quot;explorer.exe&quot; and pass it the name of file, it will try to show you a view of that folder. Give it a try: open a CMD window, and type in &quot;explorer.exe C:\Windows\System32&quot; and it should show you a view of your C:\Windows\System32 folder.So there is a little bit of magic when you call [icode]Process.Start()[/icode] and how it processes what you pass in. You can read about in the <a href="//docs.microsoft.com/en-us/dotnet/api/system.diagnostics.process.start?view=netcore-3.1#System_Diagnostics_Process_Start_System_String_">documentation</a>:Also, on reading the documentation, I gave you bad advice of using this approach:[code]string folderName = Path.Combine(Environment.CurrentDirectory, &quot;documents&quot;);Process.Start($@&quot;explorer.exe &quot;&quot;{folderName}&quot;&quot;&quot;);[/code]as per the documentation, it should have been this instead:[code]string folderName = Path.Combine(Environment.CurrentDirectory, &quot;documents&quot;);Process.Start(&quot;explorer.exe&quot;, folderName);[/code]using two parameters instead of just a single string.</blockquote>

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