I tried what you told me and it says the same thing but a little diferently.
"Dissconected from server. Error verifying STEAM UserID Ticket(server unable to contact the authentication server, 35)"
I double checked the file you had me rename, and according to my search engine there are 2 files named steamclient.dll , and 2 named steamclient.bak. None of which are located in C:/programfiles/valve/steam.
KrAzYdAvE wrote:Exit Steam, open your steam folder locate these files and rename them with a .bak extension.
ClientRegistery.blob
Steam.dll
SteamUi.dll