80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))
24,309
Sounds like you only installed the 64-bit version of the Speech Platform Runtime, and not the 32-bit version.
Author by
user3160438
Updated on December 13, 2020Comments
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user3160438 over 3 years
An unhandled exception of type 'System.Runtime.InteropServices.COMException' occurred in Microsoft.Speech.dll
Additional information: Retrieving the COM class factory for component with CLSID {49428A60-C997-4D0E-9808-9E326C178D58} failed due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).
I am following this sample from MSDN for Microsoft Speech Platform SDK 11:
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; using Microsoft.Speech; using Microsoft.Speech.Recognition; namespace WindowsFormsApplication1 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { } private void button1_Click(object sender, EventArgs e) { SpeechRecognitionEngine sre = new SpeechRecognitionEngine(new System.Globalization.CultureInfo("en-US")); ======>>**ERROR** sre.SetInputToWaveFile(@"c:\Test\Colors.wav"); Choices colors = new Choices(); colors.Add(new string[] { "red", "green", "blue" }); GrammarBuilder gb = new GrammarBuilder(); gb.Append(colors); Grammar g = new Grammar(gb); sre.LoadGrammar(g); // Register a handler for the SpeechRecognized event. sre.SpeechRecognized += new EventHandler<SpeechRecognizedEventArgs>(sre_SpeechRecognized); // Start recognition. sre.Recognize(); sre.SpeechRecognized += new EventHandler<SpeechRecognizedEventArgs>(sre_SpeechRecognized); } private void sre_SpeechRecognized(object sender, SpeechRecognizedEventArgs e) { MessageBox.Show("Speech recognized: " + e.Result.Text); } } }
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Pierre-Olivier Pignon over 7 yearsSure, i confirm, had same problem, solved installing Speech Platform Runtime 32-bit