# AI Code Enhancement with Ollama

> Improving decompiled code quality using AI. Integration with Ollama for refactoring and enhancing readability of recovered C# and VB6 code.

Canonical HTML: <https://www.vb-decompiler.org/help/ai_code_enhancement.htm>

## AI Code Enhancement

Starting from the version of **VB Decompiler 12.6 and 12.7**, you can improve the quality of decompiled **C# and VB6 code** using artificial intelligence. This feature transforms decompiled code obtained after disassembly into a more readable and structured form. To achieve this, you'll need a third-party AI model aggregator called **Ollama**, which is distributed completely free of charge (as of the time of writing this section).

### Step 1: Installing Ollama

If you don't have **Ollama** installed yet:

1. Go to the official website: [https://ollama.com/download](https://ollama.com/download)

2. Download the Windows installer.

3. Run it and follow the installation instructions.

4. After installation, restart your system to apply the updated **Path** environment variables.

5. Make sure that **Ollama** is running (you should see its icon in the system tray).

**Note:** By default, **Ollama** runs at the address **http://localhost:11434**.

### Step 2: Downloading the qwen3:8b Model

1. Open Command Prompt or PowerShell.

2. Run the following command: **ollama pull qwen3:8b**

This may take some time depending on your internet speed.

Once downloaded, the model will be available for use within **Ollama**.

### System Requirements for Ollama and the qwen3:8b Model

To run Ollama and the **qwen3:8b** model, you’ll need relatively powerful hardware as the model is quite resource-intensive:

**Minimum Requirements:**


CPU: Intel i3-7100 or equivalent AMD processor with AVX2 instruction set support

RAM: 16 GB

NVIDIA GPU: RTX 2060 with 8 GB VRAM

Disk Space: 10 GB

OS: Windows 10 or later (64-bit)

**Recommended Requirements:**


CPU: Intel i7-7700 / Ryzen 7 or higher with AVX2 instruction set support

RAM: 64 GB

NVIDIA GPU: RTX 4060 with 16 GB VRAM

Disk Space: SSD, 15 GB or more

OS: Windows 11 (64-bit)

The **qwen3:8b** model can consume up to 10–12 GB of RAM during operation.

### Step 3: Configuring VB Decompiler

Now open **VB Decompiler** and proceed to use the AI-assisted code improvement feature.


On one side of the window, there's an object tree where you can select the function you want to decompile.

On the other side, there's a panel with tabs:

**Decompiler** – displays the decompiled code.

**AI Helper** – where the code is improved using AI.

![VB Decompiler - Decompiled C# Code](https://www.vb-decompiler.org/image/help/decompiled_cs_code.png)

### Step 4: Connecting to Ollama

Switch to the **AI Helper** tab.

In the **Ollama host** field, enter the address where the Ollama server is running. By default: **http://localhost:11434**

In the **Model** dropdown list, choose the model (we strongly recommend using this specific model): **qwen3:8b**

### Step 5: Enhancing Code with AI

Click the **Go** button.

The program will send the current decompiled code to the Ollama model and receive an improved version.

The result will be displayed in the text field below the **Go** button.

![VB Decompiler - AI Optimized C# Code](https://www.vb-decompiler.org/image/help/ai_optimized_cs_code.png)

### What Does the AI Improve?

- Recognizes and restores constructs such as **for**, **foreach**, **while**, **do...while**.

- Converts **goto** into structured logic like **if...else**.

- Replaces numeric values with known constants (e.g., **0x20000000** → **FileAccess.Read**).

- Simplifies complex conditions and expressions.

- Improves code readability through reformatting and renaming variables (when possible).

### Possible Issues and Tips

- Ensure Ollama is running and accessible at the specified address.

- If the model doesn’t appear in the list, verify that it was properly downloaded via **ollama pull**.

- If processing takes too long, try using lighter models.

- For best results, use the **qwen3:8b** model.

### Important Notice

**Ollama** is a third-party product developed by an independent team. The author of **VB Decompiler** assumes no responsibility for the correctness of Ollama’s operation, the quality of model outputs, their availability, or the results of AI-based code improvements.

### Conclusion

The AI-assisted code enhancement feature significantly improves the analysis of compiled applications. Thanks to local execution via **Ollama**, you maintain data privacy and full control over the analysis process.