PDFCreator 2.02 cannot detect default e-mail client on Windows Server 2003

In Actions’s tab there is “Open e-mail client” option.
If you are on windows 2003 server and after clicking on the button "Check E-mail Client"so nothing happens!
On this server and my windows 7 pc there’s “Mozilla Thunderbird” installed as well as default e-mail client.
In my Windows 7 it works well.
I went back to the old version 1.7.3 which works.
Thank you


are there any entries under HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail or HKEY_CURRENT_USER\SOFTWARE\Clients\Mail on the 2003 server and if yes, what do they say? These are the locations we check.

best regards,