# Remote connection to WinCC OPC Server in Server2008

**URL:** <https://forum.inductiveautomation.com/t/remote-connection-to-wincc-opc-server-in-server2008/2002>\
**Category:** Ignition\
**Created:** [July 5, 2010, 11:55am UTC](https://forum.inductiveautomation.com/t/remote-connection-to-wincc-opc-server-in-server2008/2002 "2010-07-05T11:55:03Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Shailesh](https://avatars.discourse-cdn.com/v4/letter/s/50afbb/32.png) [@Shailesh](https://forum.inductiveautomation.com/u/Shailesh)\
**Post date:** [July 5, 2010, 11:55am UTC](https://forum.inductiveautomation.com/t/remote-connection-to-wincc-opc-server-in-server2008/2002/1 "2010-07-05T11:55:03Z")

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Dear Carl,

1. We have completed the DCOM settings for Server 2008(Ignition Server) and Windows xp(WinCC Server).
2. While trying to access OPCServer.Wincc remotely, i am getting the following error

1.com.jniwrapper.win32.com.ComException: COM object method returns error code: 0x80040154; REGDB\_E\_CLASSNOTREG (Class not registered)

But locally we try with Matrikon,it is running

Plese reply me,

Regards  
Shailesh

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**Author:** ![Travis.Cox](https://avatars.discourse-cdn.com/v4/letter/t/b9bd4f/32.png) [@Travis.Cox](https://forum.inductiveautomation.com/u/Travis.Cox)\
**Post date:** [July 6, 2010, 3:13pm UTC](https://forum.inductiveautomation.com/t/remote-connection-to-wincc-opc-server-in-server2008/2002/2 "2010-07-06T15:13:18Z")

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Your DCOM settings are still not perfect. Take a look at this DCOM post for more information:

[http://www.inductiveautomation.com/forum/viewtopic.php?f=25&t=2259&p=12622&hilit=dcom#p12622](http://www.inductiveautomation.com/forum/viewtopic.php?f=25&t=2259&p=12622&hilit=dcom#p12622)

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**Author:** ![Colby.Clegg](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/colby.clegg/32/3282_2.png) [@Colby.Clegg](https://forum.inductiveautomation.com/u/Colby.Clegg)\
**Post date:** [July 6, 2010, 3:45pm UTC](https://forum.inductiveautomation.com/t/remote-connection-to-wincc-opc-server-in-server2008/2002/3 "2010-07-06T15:45:59Z")

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With the “CLASS\_NOT\_REGISTERED” error, it may be possible that the OPC core components aren’t properly installed on the remote machine.

Please try the following:

1. Download the [OPC Core Components](http://files.inductiveautomation.com.s3.amazonaws.com/extras/OPCCore_x86.zip) file.
2. Stop Ignition
3. Install that file.
4. Restart Ignition and try again.

Does your remote machine have any other OPC software? I would guess that it doesn’t. It might be useful to install something like the [Matrikon OPC Explorer](http://www.matrikonopc.com/products/opc-desktop-tools/opc-explorer.aspx) to help troubleshoot. I say this because it will get rid of some of the additional service vs. application complexity, discussed a bit [here](http://inductiveautomation.com/forum/viewtopic.php?f=72&t=5386). Once that works you can focus on Ignition.

Regards,