How can I programmatically cancel an outlook meeting with asp.net VB?

Question

I can programmatically create a meeting request that is sent to the user through code and appears in Outlook mail where the user can accept the request and if accepted the a

Answer 1

ANSWERED

To cancel the meeting and have it removed from the outlook calendar you need to change the Method from "REQUEST" to "CANCEL" for the event that sends the cancellation request.

msg.Body = strBody.ToString()

Dim str As New StringBuilder()
str.AppendLine("BEGIN:VCALENDAR")

'PRODID: identifier for the product that created the Calendar object
str.AppendLine("PRODID:-//CARS//Outlook MIMEDIR//EN")
str.AppendLine("VERSION:2.0")
'''ORIGINAL-CHANGE TO CANCEL'''
'str.AppendLine("METHOD:REQUEST")
'''NEW - CHANGE TO CANCEL'''
str.AppendLine("METHOD:CANCEL")
'''Everything else remains the same. Will work and remove meeting from calendar.'''

Answer 2

Currently i am using this code to send meeting to outlook..

StringBuilder OutlookBody = new StringBuilder();

string textvs = @"BEGIN:VCALENDAR

PRODID:-//Microsoft Corporation//Outlook 10.0 MIMEDIR//EN

VERSION:1.0

BEGIN:VEVENT

LOCATION:" + Location + @"

DTSTART:" + string.Format("DTSTART:{0:yyyyMMddTHHmmssZ}", start) + @"

DTEND:" + string.Format("DTEND:{0:yyyyMMddTHHmmssZ}", end) + @"

DESCRIPTION;ENCODING=QUOTED-PRINTABLE:= " + OutlookBody + @"=0D=0A SUMMARY:" + AppoitmentName + @"

PRIORITY:3

END:VEVENT

END:VCALENDAR";

And it is working fine..

How can i use the same code to cancel / remove appointment from outlook.