Add in won't start when using hebrew profile

[Danila]

Hi, Im trying to write a simple add in using visual studio 2003
here is the code:
public void OnConnection(object application, Extensibility.ext_ConnectMode
connectMode, object addInInst, ref System.Array custom)
{
System.Windows.Forms.MessageBox.Show("Connect");
applicationObject = application;
addInInstance = addInInst;
}

It works fine when I use english profile ( mail folders named in english),
but when I try to use a hebrew profile - nothing happens. As if add in
doesnt exist.

Any ideas will be appreciated