Voice Recognition in Multiple Form

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How to use voice recognition using speechrecognizer() in multiple forms in vb.net 2008 for XP. Voice recognition in a single form is working properly but in case of multiple form when I am trying to change the form I am getting a error as follows:

Unable to cast COM object of type 'System.Speech.Internal.SapiInterop.SpSharedRecognizer' to interface type 'System.Speech.Internal.SapiInterop.ISpRecognizer'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{C2B5F241-DAA0-4507-9E16-5A1EAA2B7A5C}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)).

Thank you in advance regarding any help in this topic...

Posted 20-Mar-13 21:21pm

Sourav Bhaumik

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Bernhard Hiller · Answer 1 · 2013-03-20T21:48:00

Solution 1

Looks like you use System.Speech.Internal.SapiInterop.SpSharedRecognizer in one form, and System.Speech.Internal.SapiInterop.ISpRecognizer in another form. Why do you do so? Just use the same type of recognizer in all your forms.

Posted 20-Mar-13 21:48pm

Bernhard Hiller