# wind4/vlmcsd

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8,823 stars · 2,475 forks · C · archived

## Links

- GitHub: https://github.com/Wind4/vlmcsd
- Homepage: https://forums.mydigitallife.net/threads/50234
- awesome-repositories: https://awesome-repositories.com/repository/wind4-vlmcsd.md

## Description

vlmcsd is a C-based licensing server emulator designed to mimic the Key Management Service protocol. It enables local software authorization by simulating a remote activation server, allowing software to be activated on a device or network without connecting to external servers.

The emulator is cross-platform and compatible with Linux, Windows, macOS, iOS, and Android. It operates as a TCP/IP socket listener that intercepts activation requests and generates the corresponding response tokens required for software authorization.

The system handles activation through binary payload parsing and stateless request processing. It focuses on protocol-based server emulation to provide validly formatted licensing tokens to the software client.

## Tags

### Game Development

- [License Server Emulators](https://awesome-repositories.com/f/game-development/license-server-emulators.md) — Mimics the network behavior and response patterns of a remote license server to authorize software locally.

### Business & Productivity Software

- [License Emulation](https://awesome-repositories.com/f/business-productivity-software/license-management/license-emulation.md) — Mimics a licensing server activation protocol to authorize software locally without external servers. ([source](https://cdn.jsdelivr.net/gh/wind4/vlmcsd@master/README.md))
- [KMS Protocol Activators](https://awesome-repositories.com/f/business-productivity-software/office-productivity-software/activation-utilities/volume-license-activators/kms-protocol-activators.md) — Runs a local emulator to activate software that requires a Key Management Service connection.

### Operating Systems & Systems Programming

- [KMS Server Emulators](https://awesome-repositories.com/f/operating-systems-systems-programming/kms-server-emulators.md) — Mimics a Key Management Service server to provide volume licensing activation locally across various operating systems.
- [C-Based Network Servers](https://awesome-repositories.com/f/operating-systems-systems-programming/c-based-network-servers.md) — Provides a lightweight server written in C that handles software activation requests across multiple operating systems.
- [Cross-Platform C Libraries](https://awesome-repositories.com/f/operating-systems-systems-programming/cross-platform-c-libraries.md) — Provides a portable C-based implementation ensuring compatibility across Windows, Unix, and mobile platforms.

### Security & Cryptography

- [Local Activations](https://awesome-repositories.com/f/security-cryptography/account-management/premium/local-activations.md) — Enables the activation of software features locally to avoid reliance on third-party activation servers.
- [Authorization Token Generation](https://awesome-repositories.com/f/security-cryptography/authorization-token-generation.md) — Generates validly formatted licensing tokens that the software client accepts as genuine server authorizations.

### Networking & Communication

- [TCP and Unix Socket Listeners](https://awesome-repositories.com/f/networking-communication/tcp-and-unix-socket-listeners.md) — Operates as a TCP/IP socket listener to intercept and respond to licensing queries on a specific port.

### Programming Languages & Runtimes

- [Network Protocol Parsing](https://awesome-repositories.com/f/programming-languages-runtimes/binary-parsing/network-protocol-parsing.md) — Implements binary payload parsing to decode encrypted activation requests from network clients.

### Software Engineering & Architecture

- [Stateless Request Processing](https://awesome-repositories.com/f/software-engineering-architecture/stateless-request-processing.md) — Processes each activation request independently without needing a persistent database of client machine IDs.