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Microsoft outlook programming issue

Hello

I am doing some programming with Microsoft Office 2013 - Outlook to send a mail using Visual Studio 2010. Here is the code which I use to initialize Outlook Object.

                If OutlookApp Is Nothing Then
                    OutlookApp = New Outlook.Application 
                    pVersion = CShort(OutlookApp.Version.Substring(0, OutlookApp.Version.IndexOf(".")))
                    oNameSpace = OutlookApp.GetNamespace("MAPI")
                    oNameSpace.Logon("", "", False, False)
                    oMailItem = CType(OutlookApp.CreateItem(Outlook.OlItemType.olMailItem), Outlook.MailItem)
                End If

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Here the code is built with 32bit platform and works fine with Office 2013 - 32bit setup.
But when I try to use the same code with Office 2013 - 64bit, I am unable to initialize the outlook Application. Thought the first line (OutlookApp = New Outlook.Application ) is executing well, I am getting a COM exception from the second line while accessing the Version [pVersion = CShort(OutlookApp.Version.Substring(0, OutlookApp.Version.IndexOf("."))).]

This is the full error message

Retrieving the COM class factory for component with CLSID {0006F03A-0000-0000-C000-000000000046} failed due to the following error: 80004023.
System.ArgumentException: Empty path name is not legal.
at System.IO.StreamReader..ctor(String path, Encoding encoding, Boolean detectEncodingFromByteOrderMarks, Int32 bufferSize)
at System.IO.StreamReader..ctor(String path, Boolean detectEncodingFromByteOrderMarks)
at MAPISESSION.frmTest.Button1_Click(Object sender, EventArgs e) in E:\Visual Studio 2008 Projects\5. TWBS Components\TWBS Mail\MAPISESSION\MAPISESSION\frmTest.vb:line 20

Please help me on this.

Thanks in Advance.

Éric Moreau

do you need to use Outlook? or do you just want to send a email from your application?

I have written many blogs on different ways of sending emails through the years like using the System.Net.Mail namespace. Check the http://emoreau.com/Entries/Articles/2010/07/Sending-e-mails-with-attachments-a-different-method.aspx (which include links to previous ones)

gopalv

ASKER

Hi Eric

Yes, I need Outlook in this case. In my program, I am supporting two types of emails. 1. SMTP and 2. Outlook. So this is the 2nd case.

Thanks

Éric Moreau

Have a closer look to the last link in my blog: http://www.codeproject.com/Articles/17561/Programmatically-adding-attachments-to-emails-in-C

it has C# and VB code to open the new message dialog.

gopalv

ASKER

Hi

I had gone through this, but didn't find anything related to a 64bit version.
Can you / any one please post a code sample to demonstrate how to work with 64bit?
Or is that an issue with any settings?

Thnx

Éric Moreau

Instead of trying to find the way to get your method working on 64-bits, try the other mechanism. I have used it on 32 and 64 bits.

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JimFive

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gopalv

ASKER

Hi Jim

The Debug.Print also giving the same issue. What I am seeing when looking for OutlookApp object properties, all these properties are showing the same message. Retrieving the COM class factory for component with CLSID {0006F03A-0000-0000-C000-000000000046} failed due to the following error

Thanks

gopalv

ASKER

Eric

Thanks for your advice. Let me check your code once more. Hopefully, I will get my answer from this.

Thanks