Windows Registry Editor Version 5.00

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

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

[HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail\test\Protocols\mailto]
"URL Protocol"=""
"EditFlags"=hex:02,00,00,00
@="URL:MailTo Protocol"

[HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail\test\Protocols\mailto\shell]

[HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail\test\Protocols\mailto\shell\open]

[HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail\test\Protocols\mailto\shell\open\command]
@=hex(2):22,00,25,00,75,00,73,00,65,00,72,00,70,00,72,00,6f,00,66,00,\
  69,00,6c,00,65,00,25,00,5c,00,64,00,65,00,73,00,6b,00,74,00,6f,00,70,00,5c,\
  00,74,00,65,00,73,00,74,00,2e,00,62,00,61,00,74,00,22,00,20,00,25,00,31,00,\
  00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail\test\shell]

[HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail\test\shell\open]

[HKEY_LOCAL_MACHINE\SOFTWARE\Clients\Mail\test\shell\open\command]
@=hex(2):22,00,25,00,75,00,73,00,65,00,72,00,70,00,72,00,6f,00,66,00,\
  69,00,6c,00,65,00,25,00,5c,00,64,00,65,00,73,00,6b,00,74,00,6f,00,70,00,5c,\
  00,74,00,65,00,73,00,74,00,2e,00,62,00,61,00,74,00,22,00,00,00