The LAN patch lets you play LAN on Command & Conquer: Tiberian Sun and Red Alert 2 (and their expansion packs) in Windows 2000 and later by changing IPX protocol to UDP.
An unofficial patch that provides a slight enhancement to the default launchers provided with the Origin release (fixes registry entries and allows command line arguments to function properly).
It can be downloaded from cncnz.com.
For changing resolution open files RA2.ini and RA2md.ini with any text editor and type your resolution there:
Another way to change resolution is to add the line beneath the [Video] lines.
This will let you change the resolution in the game menu to any supported by your computer.
Where ScreenHeight and ScreenWidth are your desired resolution.
This occurs when the game engine tries to render in VRAM.
Disable the Compatibility Mode of the game's RA.exe executable then copy the files from the .zip at https://github.com/CnCNet/cnc-ddraw/releases/latest to your Red Alert II installation folder, replacing those present. This also allows higher and wide-screen resolutions than the Agrit fix below.
Another fix is to download Aqrit's ddwrapper and extract the ddraw.dll and aqrit.cfg files into the RA2 folder, where ra2.ini lies. Next, ensure that only these settings are set to "1" in aqrit.cfg:
FakeVsync = 1
NoVideoMemory = 1
Alternatively, simply download and extract the contents of this preconfigured fix into the RA2 folder. Also, consider using the performance fix as well.
This happens sometimes on newer versions of Windows (7, 8, 8.1 and 10). To fix this, download Aqrit's ddwrapper and extract the ddraw.dll and aqrit.cfg files into the RA2 folder, where ra2.ini lies.
This happens if you have downloaded Aqrit's ddwrapper and extracted the ddraw.dll and aqrit.cfg files into the RA2 folder and have set the ForceDirectDrawEmulation to "1". To fix this set ForceDirectDrawEmulation to "0":
ForceDirectDrawEmulation = 0