[Foreigner]

Код:

  > reg add "hkcu\test" /v test /d "\"^%ProgramFiles(x86)^%\"" /f
Операция успешно завершена.                                      
                                                                 
  > reg query hkcu\test                                          
                                                                 
HKEY_CURRENT_USER\test                                           
    test    REG_SZ    "%ProgramFiles(x86)%"

 > reg add "hkcu\test" /v test /d "\"^%ProgramFiles(x86)^%\FastStone Image Viewer\FSViewer.exe\" \"%1\"" /f
Операция успешно завершена.

 > reg query hkcu\test

HKEY_CURRENT_USER\test
    test    REG_SZ    "%ProgramFiles(x86)%\FastStone Image Viewer\FSViewer.exe" "%1"