Download the Full client: Installation Guide (Fresh Installation)
 
1.
Download RO1.zip , data3.cab, data4.cab (click here) and place them in your hard disk. In this case its Drive D:
2.
Extract R01.zip into a folder either in Drive D or C. In this case , a folder “ RO Veins Installer “ was created. After extracting RO1.zip into the “RO Veins Installer “ folder, copy/paste data3.cab and data4.cab into the same folder.
You don’t need to extract “data3.cab and data4.cab” into the folder. Your folder content should look like this:
3.
Double click setup.exe and choose the destination where RO will be installed.
Click Next.
4.
Check all the boxes for the features to be installed. Click Next.
5.
Click install to begin the installation.
 
6. After installation, Click “Finish” and welcome to Ragnarok Online - Veins!