Fresh installation of Gpg4win 2.1.0 on Windows 7/64-bit Home Premium SP1 with
Outlook 2003 SP3. Skipped S/MIME configuration, nothing configured yet in
Kleopatra. Then after rebooting and starting Outlook 2003, Outlook 2003 cannot
send unencrypted messages anymore. After pressing send, nothing happens, no
error message. Even if only clear text is used. Deconfiguring GpgOl tab by
unchecking S/MIME support doesn't help. After uninstalling Gpg4Win and reboot,
Outlook 2003 works ok again.