Run .exe anywhere in cmd without PATH variable -

this works (notepad++):

c:\anywhere> start notepad++ hello.txt 

and works (sox removing silence in sounds):

c:\anywhere> sox in.wav out1.wav silence 1 0.1 1% 

yet, path variable includes neither (would send on request).

how can program?
run everywhere.

also, why doesn't notepad++ work without start command?

(i did workaround putting .exe in c:\ , calling c:\anywhere> /myprogram i'm still curious above.)

to indicated scenario

• you can start applications anywhere using start command (or windows run dialog) without including parent folder in path variable,
• but can not start application without start command directory whithout including full path reach (it not in path) or being located in adecuated directory

the applications included in registry under key

hkey_classes_root\applications 

note: "merged" view showing combined contents of

hkey_local_machine\software\classes\applications hkey_current_user\software\classes\applications 

if not administrator change local machine configuration, can modify user registry information include applications need.

edited there second place in registry allow include application in registry executed using start command, run dialog or uses shellexecute or shellexecuteex api calls.

hklm\software\microsoft\windows\currentversion\app paths\