根據樓主這檔案

要先安裝Steam,登入自己的帳號時,要選remember my password
登入後,從Steam安裝後的資料夾中,複製Steam.dll和ClientRegistry.blob2覆蓋X:\CSS原來的文件

再將解壓縮的X:\CSS中的SteamApp.cfg打開
內容改成如下的
SteamAppId=5
#SteamAppVersionId=0
SteamInstallPath="X:\CSS"
# [as is clearified later on, this should be your email address:]
SteamAppUser=自己的Steam帳號

執行CSS.link

注:X為某一槽