topic Re: AutoCAD LT 2014 - unable to find the instance in Running Object Table in .NET Forum

AutoCAD LT 2014 - unable to find the instance in Running Object Table

Anonymous — Mon, 06 Nov 2017 15:38:31 GMT

Hi.

I am creating a .NET application to connect to AutoCAD LT 2014 ("AutoCAD.Application.19.1") through out of process connection. I am following the steps that were mentioned in Kean's blog.

I am getting the below error even when AutoCAD is opened for this line "acApp = (AcadApplication)Marshal.GetActiveObject(progID);"

System.Runtime.InteropServices.COMException occurred HResult=0x800401E3 Message=Operation unavailable (Exception from HRESULT: 0x800401E3 (MK_E_UNAVAILABLE))

It looks like either a)the user privileges were not proper or b)the AutoCAD instance is not present in Running Object Table. Hence tried below solutions for both.

a) I am an admin user and tried various combinations - running the .NET application and AutoCAD as admin/user. - Didn't solve the issue.

b) Checked if the AutoCAD instance is present in the Running Object Table(When AutoCAD is opened) - AutoCAD instance is not present.

(Checked for all these Program ID's - "AutoCAD.Application", "AutoCAD.Application.19", "AutoCAD.Application.19.1")

(Also checked to see if any word applications are open just to make sure code is working - found instance of word application)

Hence It looks like AutoCAD Lt 2014 is not registered. What are the steps that I need to do to make sure I have AutoCAD LT 2014 registered.

Any help is greatly appreciated.

Thanks,

Firoz

Re: AutoCAD LT 2014 - unable to find the instance in Running Object Table

ActivistInvestor — Mon, 06 Nov 2017 15:44:24 GMT

AutoCAD LT doesn't support automation via ActiveX or any of the other forms of customization.

@Anonymous wrote:
Hi.

I am creating a .NET application to connect to AutoCAD LT 2014 ("AutoCAD.Application.19.1") through out of process connection. I am following the steps that were mentioned in Kean's blog.

I am getting the below error even when AutoCAD is opened for this line "acApp = (AcadApplication)Marshal.GetActiveObject(progID);"

System.Runtime.InteropServices.COMException occurred HResult=0x800401E3 Message=Operation unavailable (Exception from HRESULT: 0x800401E3 (MK_E_UNAVAILABLE))

It looks like either a)the user privileges were not proper or b)the AutoCAD instance is not present in Running Object Table. Hence tried below solutions for both.

a) I am an admin user and tried various combinations - running the .NET application and AutoCAD as admin/user. - Didn't solve the issue.

b) Checked if the AutoCAD instance is present in the Running Object Table(When AutoCAD is opened) - AutoCAD instance is not present.
(Checked for all these Program ID's - "AutoCAD.Application", "AutoCAD.Application.19", "AutoCAD.Application.19.1")
(Also checked to see if any word applications are open just to make sure code is working - found instance of word application)

Hence It looks like AutoCAD Lt 2014 is not registered. What are the steps that I need to do to make sure I have AutoCAD LT 2014 registered.

Any help is greatly appreciated.

Thanks,
Firoz

Re: AutoCAD LT 2014 - unable to find the instance in Running Object Table

Anonymous — Mon, 06 Nov 2017 16:44:24 GMT

Oh well, that's a bummer. Thanks for the reply, Activist_Investor.