Hello, I developed a application in VB.NET which uses WEBDAV to add calendar items in Exchange Server. At the moment I use PROPPATCH to add each calendar item one at a time. The problem is, that when I do multiple (like 200) request after eachother, I get a response saying that 'the underlying connection was closed'. Because of this I want to use transactions, I have read that I have to use BPROPPATCH for transactions. But this does not work for me, with BPROPPATCH you can add the same calendar item to multiple persons, and I need the other way around. Is there some way I can make a queue for calendar items? Does anyone have a solution? Thanks, Marco
