REGEDIT4

[HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail\Qm]
@="Qm"

[HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail\Qm\Protocols]

[HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail\Qm\Protocols\mailto]
@="URL:MailTo Protocol"
"URL Protocol"=""

[HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail\Qm\Protocols\mailto\DefaultIcon]
@="C:\\Program Files\\Qm\\qm.exe"

[HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail\Qm\Protocols\mailto\Shell]

[HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail\Qm\Protocols\mailto\Shell\open]

[HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail\Qm\Protocols\mailto\Shell\open\command]
@="C:\\Program Files\\Qm\\qm.exe %1"