What is the error 'system.runtime.interopservices.comexception' occurred in axinterop.mscommlib.dll additional information:exception from HRESULT:0x800a1f42

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I am writing code for Network stream for sending data to the server. It is working fine in windows xp, but when i update it to windows 7 I got this error message. HRESULT:0x800A1F42. What is this error and solution?

What I have tried:

I tried to search in net but i dont get anything.

Posted 17-Mar-19 20:18pm

Member 10556393

Updated 21-Mar-19 7:46am

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Richard Deeming · Accepted Answer · 2019-03-21T07:47:00

Solution 1

0x800A1F42 - Google Search[^]

The COM port you're trying to use does not exist, is disabled in device manager, or has already been opened by another application.

Since you're using VB.NET, you should drop the ancient MSCOMM control, and use the SerialPort class[^] instead.

Posted 21-Mar-19 7:47am

Richard Deeming

Updated 21-Mar-19 9:10am

v2