I found out HTML isn't a available out-of-pocket option in the AppointmentItem-Object.
Then i found the following answer with code from the user PGilm here (https://stackoverflow.com/a/34666267/18290219)
Dim oApp As Object
Dim oMail As Object
Set oApp = CreateObject("Outlook.Application")
Set oMail = oApp.CreateItem(1)
With oMail
.Subject = ""
.Location = ""
'.Start =
'.Duration =
' .body = " < not formattable text >"
.display
End With
Dim objItem As Object
Dim objInsp As Outlook.Inspector
Dim objWord As Word.Application
Dim objDoc As Word.Document
Dim objSel As Word.Selection
Set objItem = oMail ' Application.ActiveInspector.currentItem
Set objInsp = objItem.GetInspector
Set objDoc = objInsp.WordEditor
Set objWord = objDoc.Application
Set objSel = objWord.Selection
objSel.PasteAndFormat (wdFormatOriginalFormatting)
'objSel.PasteAndFormat (Word.WdRecoveryType.wdFormatOriginalFormatting)
Set objItem = Nothing
Set objInsp = Nothing
Set objDoc = Nothing
Set objWord = Nothing
Set objSel = Nothing
Set oApp = Nothing
Set oMail = Nothing
I tried to understand his suggestion and adapt it to my problem but I can't figure out one point.. Because of not been a extremely good VBA coder.
My html formated text is stored in a string called "messages".
Im really confused with getting this stuff to the clipboard to paste it into the meeting with his code.
can you give me a advice?
Thanks for your help !!