PoshFunctions

2.2.6

Functions/Get-ExecutableForFile.ps1

function Get-ExecutableForFile {
<#
.SYNOPSIS
    Given a file, determine what program is associated with file.
.DESCRIPTION
    Given a file, determine what program is associated with file.
.PARAMETER Path
    The path to a file
.EXAMPLE
    Get-ExecutableForFile -Path .\sample.docx
 
    C:\Program Files (x86)\Microsoft Office\Root\Office16\WINWORD.EXE
.NOTES
# source http://community.idera.com/powershell/powertips/b/tips/posts/finding-executable-for-file
# requires explicit path NOT relative
#>

    [CmdletBinding(ConfirmImpact='None')]
    param
    (
        [Parameter(Mandatory,HelpMessage='Please enter a filename',Position=0)]
        [string] $Path
    )

    begin {
        Write-Verbose -Message "Starting [$($MyInvocation.Mycommand)]"
    }

    process {
        $Source = @'
using System;
using System.Text;
using System.Runtime.InteropServices;
public class Win32API
    {
        [DllImport("shell32.dll", EntryPoint="FindExecutable")]
 
        public static extern long FindExecutableA(string lpFile, string lpDirectory, StringBuilder lpResult);
 
        public static string FindExecutable(string pv_strFilename)
        {
            StringBuilder objResultBuffer = new StringBuilder(1024);
            long lngResult = 0;
 
            lngResult = FindExecutableA(pv_strFilename, string.Empty, objResultBuffer);
 
            if(lngResult >= 32)
            {
                return objResultBuffer.ToString();
            }
 
            return string.Format("Error: ({0})", lngResult);
        }
    }
'@
        if (-not (Test-Path -Path $Path)) {
            Write-Error -Message "File specified [$Path] does not exist."
        } else {
            Add-Type -TypeDefinition $Source -ErrorAction SilentlyContinue
            [Win32API]::FindExecutable($Path)
        }
    }

    end {
        Write-Verbose -Message "Ending [$($MyInvocation.Mycommand)]"
    }
}