Updating cdo dll

Otherwise, the following exception or something similar will be thrown every time the code tries to initialize the MAPI Session.

You can even receive an error when Windows is loading.

Try adding the assembly to the GAC (which gives full trust by default) to see if that fixes your problem.

I am facing the same problem,i think the problem with this DLL with VS 2005 only,since it is working fine with VS 2003.

[STAThread] static void Main(string[] args) Hi, Thanks for your useful reply,i have the following on my case : 1) i dont have other than one target platform on my VS 2005 which is "Any CPU".

2) i use the CDO on a web application and not on console application use this the STAThread Attribute.