Creating an instance of the COM component with CLSID

Hello,

Please can someone assist me with the following issue that I have with COM Interoperability. I am using the new .NET 2.0 Framework.

I have created a production capture web application which allows our operation staff to capture production into our ERP system through a web interface which is quick and provides all the necessary data verification. I access the PROTEAN ERP environment using the system API’s which is a collection of DLL’s.

I started by convert the C+ DLL’s into .NET DLLs using the Type Library Importer (Tlbimp.exe) and then copied the file into the BIN directory of my web application and made a reference to the DLL from VS. The converted file is called NETProtean. I create a simple class called Protean Wrapper which when instantiated creates an object of the convert COM object. The class has so far one function which utilizes the logon function provided by the COM object.

Imports Microsoft.VisualBasic

Imports System.Runtime.InteropServices

Imports NetProtean

Public Class ProteanWrapper

Dim mysession As CProteanSession

Public Sub New()

mysession = New CProteanSession()

End Sub

Function Logon(ByVal txtusername As String, ByVal txtpassword As String, ByVal txtdatabase As String) As Boolean

Dim login As Boolean

login = mysession.Login(txtusername, txtpassword, txtdatabase)

Return mysession.IsConnected

End Function

End Class

I then created another a web page which instantiates the ProteanWrapper class and uses the logon function to logon to the PROTEAN ERP environment which works perfectly

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

Dim mysession As New ProteanWrapper

lblConnected.Text = mysession.Logon("servicescbsa", "servicescbsa", "dbPZACTxxLIVE")

So far I do not have a problem and everything works perfectly. However, after a certain amount of idle time, the Protean session process located in the Windows task manager disappears. This represents the connection to the ERP environment. When this Process disappears and I rerun the web page I get the following error:

Creating an instance of the COM component with CLSID {5FBD2514-9C00-11D1-BBBE-0000C091D9DB} from the IClassFactory failed due to the following error: 80010105.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Runtime.InteropServices.COMException: Creating an instance of the COM component with CLSID {5FBD2514-9C00-11D1-BBBE-0000C091D9DB} from the IClassFactory failed due to the following error: 80010105.

Source Error:

Line 20:     Public Sub New()

Line 21: 

Line 22:         mysession = New CProteanSession()

Line 23: 

Line 24:     End Sub

Source File: C:\Inetpub\wwwroot\ScheduleCapture2\App_Code\ProteanWrapper.vb Line: 22

I have two questions:

1) Why does the Protean Session process located in the Windows task manager of the web server (which represents my connection to Protean) disappear after a certain period of idle time Is this done by .NET’s garbage collection

2) What exactly does this message mean to me

3) How can I fix this from occurring

Regards,