Just making sure it's not a typo: is the directory really "D:\+GOG\" instead of, say, "D:\GOG\"

EDIT: Nevermind, I suposed it is since you copiypasted for the original shortcut properties.

Did you try the other option? Maybe make it simpler, without the commands first. Just do the address, between quotes.

"D:\+GOG\Syndicate\DOSBOX\DOSBox.exe"
I really can't imagine why that wouldn't work. (may have mistyped the address)

The only thing I'm not sure about is if the added commands come after this or are added between the quotes after the .exe , but I think they come after this.

Well, yeah - shortcut you've provided works, but it just launches the DOSBOX.
Now we just have to make it load the Syndicate config file...

It looks like you put apostrophes around the entire thing.
I thought Pheace was suggesting something more like: Rather than: which is what it looks like you put.

EDIT: Just noticed Pheace did tell you to put the quote at the end (although he said quote rather than apostrophe). Still, try the first example I put above. If that doesn't work I can only assume that the problem might be the + in the path.

Some lol-at-achievements probably :D

It is very funny that people who get DRM-free game are trying themselves to put DRM in it. It's not understandable for me at all and kind of stupidity (I mean no offence).
Big LOL. xD

It's not even achievements. Normally the reason people add games to Steam is for the overlay, but that doesn't even work with DOSBox AFAIK. I think the only purpose this serves is to tell your 'Steam buddies' that you're playing whatever game.

Actually it's useful for 2 reasons:

1. To have all your games launch shortcuts in one place, organized by your own categories, etc.

2. To have access to Steam Overlay (sometimes works with shortcuts, sometimes doesn't).

Well then you're one step further at least. I'd imagine that it is nothing more than adding the console commands after that part. Sirprimalform already wrote it out in the way I first suggested it, I just didn't really put it that clearly :)

My first two suggestions were either this:
"D:\+GOG\Syndicate\DOSBOX\DOSBox.exe" -conf dosboxSyndicate.conf -noconsole -c
Or this:
"D:\+GOG\Syndicate\DOSBOX\DOSBox.exe -conf dosboxSyndicate.conf -noconsole -c"

Although the Exit was behind it on your line but I'm not sure what that's for. Then it would be
"D:\+GOG\Syndicate\DOSBOX\DOSBox.exe" -conf dosboxSyndicate.conf -noconsole -c "Exit"
Or this:
"D:\+GOG\Syndicate\DOSBOX\DOSBox.exe -conf dosboxSyndicate.conf -noconsole -c "Exit""

Still it is not understandable for me. If I am playing some game I am playing it for my own entertainment not for my friends nor to "impress" anybody else. Especially when game has no multiplayer so I am not looking for any friend to play together.

It's probably somewhat the same reason that I stream my games sometimes. It's not to play together or something but when I'm playing it's just nice to have people with similar interests come in every now and then and simply talk about the game etc.

ad 1. I can easily do it myself without any big trouble. It's as hard as drag and drop.
ad 2. I don't know what Steam Overlay is.. but I must be something very important that people are "giving their freedom" for that.

I think it's a bit pointless too, just trying to explain some of the reasons I've heard people give.

I personally don't bother with Steam for non-Steam games (and usually don't bother with Steam for Steam games either *cough* <_<;).

I could understand such streaming more. At least in streaming you are sharing game's secrets, giving advices and so on.

I'm confused how they give their freedom for anything? Steam is a social client as well as a digital distribution system. If people keep their friendslist on there, but not their games and instead add the shortcuts to Steam so the Steam overlay (which means you can pop it up ingame and chat directly with friends) works, how is this in any way 'giving up your freedom'?