Well the launcher wont work properly (I can only get up to 800x600) and no one answered my question yet so I took my time to create my own launcher using Batch.
It's pretty simple and has many features like saving but its only for resolutions (no OpenGL and stuff support)
Here's the code:
Save this inside a file named: CS2D Custom Resolution.bat
Place it in your CS2D folder.
Moderators can feel free to ask me what each thing does in case of "OMG VIRUS AAA" or "BAN AAAA".
Didn't knew where to post
Just to point out:
Launcher max resolution for me: 800x600
Batch max resolution for me: 1024x768