CS Source Strogino Portal under Wine

Hello again,
I’ve been here before, but I’ve heard the forum has started from scratch.

I’m trying to run Strogino version of CS Source. It’s about testing, not piracy.

I’ve already installed game with no errors, problem is when I’m trying to run the game. I’ve got this message:
Unable to load .\steam\Steam.dll.
Please edit or comment out SteamDll value in rev.ini

So, I did open rev.ini and here how it’s looks like:
[Loader]
ProcName=hl2.exe -steam -game cstrike -appid 240 -novid
[Emulator]
CacheEnabled=False
Logging=False
SteamDll=.\steam\Steam.dll
SteamClient=true
SteamUser=SteamPlayer
Language=Polish
[Log]
FileSystem=False
Account=False
UserID=False
[steamclient]
Logging=False
PlayerName=User
ClanTag=LOCALHOST
Use_avatar=true

The problem is path, in Linux we’re using slash “/” to define structure, in the other hand in Windows that works with backslash “”. I’ve tryed replacing backslash to slash, I’ve quoted the path, even imitate wine drive_c as C:…\steam\Steam.dll
Also I’ve tryed with full path:
/home/user/.wine/drive_c/Program Files/Strogino CS Portal/Counter-Strike Source/

For some reason this is not working. Any ideas?