[Nordek]

суровый, Для начала.
Результат!

суровый, По представленному примеру ниже пробовали?

Пример связывания:

Код:

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Classes\.sch]
@="ut.sch"

[HKEY_CURRENT_USER\Software\Classes\ut.sch]
"FriendlyTypeName"=hex(2):55,00,54,00,20,00,46,00,69,00,6c,00,65,00,00,00
"InfoTip"=hex(2):1f,04,40,04,35,04,34,04,3d,04,3e,04,37,04,3d,04,30,04,47,04,\
  35,04,3d,04,3e,04,20,00,34,04,3b,04,4f,04,20,00,2e,00,2e,00,2e,00,00,00

[HKEY_CURRENT_USER\Software\Classes\ut.sch\DefaultIcon]
@="C:\\Program Files\\uTorrent\\uTorrent.exe,0"

[HKEY_CURRENT_USER\Software\Classes\ut.sch\shell\open\command]
@="\"C:\\Program Files\\uTorrent\\uTorrent.exe\" \"%1\""

[HKEY_CURRENT_USER\Software\Classes\ut.sch\DefaultIcon]
@="C:\\Program Files\\uTorrent\\uTorrent.exe,0"

[-HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.sch]

Пример отмены:

Код:

Windows Registry Editor Version 5.00

[-HKEY_CURRENT_USER\Software\Classes\.sch]
[-HKEY_CURRENT_USER\Software\Classes\ut.sch]