How to open outlook with VBA - vba

Question

I like to open Outlook with VBA. It should check if outlook is open and if not then it should open it. I have code but its to big and some times dont work with other macros with Call function. What should be the simple and short code to do this and work with all versions?
#Const LateBind = True
Const olMinimized As Long = 1
Const olMaximized As Long = 2
Const olFolderInbox As Long = 6
#If LateBind Then
Public Function OutlookApp( _
Optional WindowState As Long = olMinimized, _
Optional ReleaseIt As Boolean = False _
) As Object
Static o As Object
#Else
Public Function OutlookApp( _
Optional WindowState As outlook.OlWindowState = olMinimized, _
Optional ReleaseIt As Boolean _
) As outlook.Application
Static o As outlook.Application
#End If
On Error GoTo ErrHandler
Select Case True
Case o Is Nothing, Len(o.Name) = 0
Set o = GetObject(, "Outlook.Application")
If o.Explorers.Count = 0 Then
InitOutlook:
'Open inbox to prevent errors with security prompts
o.session.GetDefaultFolder(olFolderInbox).Display
o.ActiveExplorer.WindowState = WindowState
End If
Case ReleaseIt
Set o = Nothing
End Select
Set OutlookApp = o
ExitProc:
Exit Function
ErrHandler:
Select Case Err.Number
Case -2147352567
'User cancelled setup, silently exit
Set o = Nothing
Case 429, 462
Set o = GetOutlookApp()
If o Is Nothing Then
Err.Raise 429, "OutlookApp", "Outlook Application does not appear to be installed."
Else
Resume InitOutlook
End If
Case Else
MsgBox "Error " & Err.Number & ": " & Err.Description, vbCritical, "Unexpected error"
End Select
Resume ExitProc
Resume
End Function
#If LateBind Then
Private Function GetOutlookApp() As Object
#Else
Private Function GetOutlookApp() As outlook.Application
#End If
On Error GoTo ErrHandler
Set GetOutlookApp = CreateObject("Outlook.Application")
ExitProc:
Exit Function
ErrHandler:
Select Case Err.Number
Case Else
'Do not raise any errors
Set GetOutlookApp = Nothing
End Select
Resume ExitProc
Resume
End Function
Sub open_outlook()
Dim OutApp As Object
Set OutApp = OutlookApp()
'Automate OutApp as desired
End Sub

Answer 1

I think you can try below code.Its shortest code i tried to open in my all VBA coding.
Sub Open_Outlook()
Shell ("OUTLOOK")
End Sub

Answer 2

See How to automate Outlook from another program for the sample code. You can use the GetObject method for getting the running instance of Outlook instead of creating a new one:
Set objOutlook = GetObject(, "Outlook.Application")
However, Outlook is a singleton. Each time you call the CreateObject method you will get the same instance. You can't run two instances of Outlook at the same time. See GetObject in Word VBA script to find Outlook instance fails with 429 error unless both apps running as administrator for more info.
Be aware, Microsoft does not currently recommend, and does not support, Automation of Microsoft Office applications from any unattended, non-interactive client application or component (including ASP, ASP.NET, DCOM, and NT Services), because Office may exhibit unstable behavior and/or deadlock when Office is run in this environment.
If you are building a solution that runs in a server-side context, you should try to use components that have been made safe for unattended execution. Or, you should try to find alternatives that allow at least part of the code to run client-side. If you use an Office application from a server-side solution, the application will lack many of the necessary capabilities to run successfully. Additionally, you will be taking risks with the stability of your overall solution. Read more about that in the Considerations for server-side Automation of Office article.

Answer 3

Dim oOutlook As Object
On Error Resume Next
Set oOutlook = GetObject(, "Outlook.Application")
On Error GoTo 0
If oOutlook Is Nothing Then
Shell ("OUTLOOK")
Else
'already open
End If

Answer 4

You could use something simplier:
Sub EmailMe()
dim mail as object
dim msg as object
set mail= createobject("Outlook.Application")
set msg=mail.createitem(0)
with msg
.to="someone#something.com;...."
.subject="What are you sending this for"
.body="Whatever you want to say"
.attachments.add Activeworkbook.fullname
.send
end with
end sub