PowerShell实现查询打开某个文件的默认应用程序（powershell 获取文件大小）太疯狂了

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);
}
}

“@

Add-Type -TypeDefinition $Source -ErrorAction SilentlyContinue

$FullName=’c:\Windows\windowsupdate.log’
$Executable=[Win32API]::FindExecutable($FullName)

“$FullName will be launched by $Executable”