VB6 MCP Server

Visual Basic 6.0 Model Context Protocol Server for AI coding assistants (SOLO / Trae IDE).

Features

• 13 VB6 development tools via MCP protocol
• Create, compile, edit VB6 projects
• Add forms, modules, classes
• Open VB6 IDE
• Run and stop VB6 projects
• Auto-detect VB6 installation and stdole2.tlb
• v1.0.4: Reliable compilation error reporting (exit code, MZ header validation, error parsing)

Quick Start

1. Install VB6

Install Visual Basic 6.0 or VB6Mini to the default path:

C:\Program Files (x86)\VB6Mini\bin\VB6.EXE

2. Configure MCP

Add to your SOLO / Trae IDE MCP settings:

{
  "mcpServers": {
    "vb6": {
      "command": "path/to/vb6mcp-v1.0.4.exe"
    }
  }
}

Or run from source with Python:

{
  "mcpServers": {
    "vb6": {
      "command": "python",
      "args": ["path/to/server.py"]
    }
  }
}

3. Use

Ask your AI assistant to create VB6 projects, compile code, etc.

Available Tools

| Tool | Description | |------|-------------| | vb6_set_path | Set/get VB6.EXE path | | vb6_compile | Compile .vbp to EXE | | vb6_create_project | Create new VB6 project | | vb6_write_code | Write VB6 source code | | vb6_read_code | Read VB6 source code | | vb6_add_module | Add .bas module | | vb6_add_form | Add .frm form | | vb6_add_class | Add .cls class | | vb6_open_ide | Open VB6 IDE | | vb6_run | Run VB6 project | | vb6_stop | Stop running VB6 | | vb6_project_info | Get project info | | vb6_list_projects | List .vbp files |

Changelog

v1.0.4

• Fixed vb6_compile returning false positive on compilation failure
• Added process exit code capture
• Added EXE file validation (size check + MZ header)
• Added compile error parsing from /out output file
• Process cleanup on timeout

v1.0.3

• Added vb6_write_code for writing VB6 source files
• Added vb6_read_code for reading VB6 source files

v1.0.2

• Added vb6_open_ide, vb6_run, vb6_stop

v1.0.1

• Added vb6_add_module, vb6_add_form, vb6_add_class

v1.0.0

• Initial release with core tools

Requirements

• Windows
• Visual Basic 6.0 (or VB6Mini)
• No Python required for EXE version

License

MIT