Double Commander

If I double click on an .exe file (or if I press Enter on it) is different than if I right-click -> "Open".

Example: I have Foobar installed. I also have another portable Foobar on my drive in its own folder.
If I try to open the portable Foobar.exe in DC, the installed Foobar.exe starts up instead.

This does not happen in Windows Explorer or any other file manager I tried. (But I can open the portable Foobar.exe from DC if I right click -> "Open" the file.)

I'm not sure if this is a bug or intended behavior (if it is, why?), but I would prefer if it behaved like Windows Explorer.

I also noticed this interferes with AutoHotkey and UAC working properly.. That is, it makes the UAC dialog unclickable until you select it from the taskbar. (If you open an .exe that brings up UAC from DC.)

I think via Enter DC try to execute process, but action on open was written in registry. I think it's not right - to use associates in registry for .exe files.

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ОС: Win 7 Home Basic / Pro, 0.5.5 (on of latest build).

Another program which doesn't play nice with this is Comodo (or at least the Defense+ part of it), which interprets it as possibly dangerous behavior.
This is what happens when trying to run either an .exe from DC or a file that gets opened by the associated .exe (in this case a .rtf file):
http://i47.tinypic.com/2i0ww0.png
I have to allow this for every new .exe.

Is this something that can be changed in DC?

It needs to add DC to Computer Security Policy - Defence+ Rules

Sure. I was asking about the issue of this thread in general, if it's something that can be changed, to make DC behave like Explorer and other file managers when opening files.

Ah, yes. DC executing function uses registry key
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\foobar2000.exe
It needs to change the way of run.

In uOSUtils.pas string 316:
Result := (ShellExecuteW(0, nil, PWChar(wFileName), PWChar(wParams), PWChar(wWorkDir), SW_SHOW) > 32);

If change it to this:
Result := (ShellExecuteW(0, nil, PWChar(wWorkDir+'\'+wFileName), PWChar(wParams), PWChar(wWorkDir), SW_SHOW) > 32);
it works, but may be it is wrong ))

I think fixed. Try revision: 4942.

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Windows XP SP3
Linux Mint Xfce Edition

Yeah, I think it's working fine now. Thanks.