Est. 2016 · 10 years of engineering

Liasoft

Native software for low-level engineers.

Code coverage, software protection, and Windows debugging - for native C and C++.

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Our Products

Commercial developer software - designed, built and sold by Liasoft.

C++ obfuscation library

antispy SDK

Protect your C++ at compile time.

▦ main.cpp M

— ▢ ✕

1#include <antispy/libantispy.h>

3int main() {

4 // encrypt a sensitive string

5 std::string data = "TopSecretData";

6 libantispy::buffer enc(data);

8 if (!enc.empty()) {

9 use(enc);

10 }

11}

The antispy SDK shields compiled C++ from reverse engineering. It encrypts strings, virtualizes critical code, and obfuscates control flow - all during compilation, with no post-build step and minimal source changes. One library protects keys, license checks, scripting engines and proprietary algorithms across Windows, Linux, macOS, Android, iOS and bare metal.

String encryption

Code virtualization

Control-flow obfuscation

x86 · x64 · ARM

Explore the antispy SDK

C++ code coverage

covdbg

Code with confidence. Ship with tested edge-cases.

⧉FileEditSelectionViewGoRun···

quick-start

— ▢ ✕

TESTING

↻ ▷ ⏭ ⟳

Filter (e.g. text, !exclude, @tag)

1/1

▾covdbg1 discovered test

test_app.exebuild/Debug/test_app.e…▷

▦ main.cpp M ✕

src›▦main.cpp›main()

1#include <iostream>

3int main()

5 std::cout << "Hello, World!" << std::endl;

6 if (false)

7 {

8 std::cout << "This will never be printed." << std::endl;

9 }

10 return 0;

11}

PROBLEMSTEST RESULTSOUTPUT

covdbg ▾

⎇ feature/prepare-vscode-extension*⊘ 0 △ 0↻ Build⇡ Pull Request #1

Ln 8, Col 38Spaces: 4UTF-8CRLF{} C++covdbg ✓Win32

covdbg measures C++ code coverage on Windows through binary instrumentation - point it at your existing .exe with debug symbols, no source changes and no rebuilds. It runs with minimal overhead, highlights coverage inline in VS Code and Visual Studio, and exports LCOV / GCOV reports straight into your CI.

Binary instrumentation

Minimal overhead

VS Code & Visual Studio

CI/CD ready

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Open Source we support

Independent open-source projects, maintained in the open and supported by Liasoft - community tools, not commercial products.

MCP server for WinDbg

mcp-windbg

svnscha/mcp-windbg

Crash-dump analysis, driven by AI.

✻claude- mcp-windbg

cdb · DemoCrash1.exe.7088.dmp

❯

mcp-windbg bridges AI assistants with WinDbg through the Model Context Protocol. Ask “why the access violation?” and it runs the right CDB commands, analyses the dump, and explains the root cause - for crash dumps and live debugging alike. Works with Copilot, Claude, Cursor and other MCP clients.

AI-driven analysis

Crash dumps

WinDbg / CDB

MCP clients

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Debug adapter for VS Code

dap-dbgeng

svnscha/dap-dbgeng

Complete native debugging for Windows, in VS Code.

Debug a Windows driver from VS Code

FileEditSelectionViewRun

hello.c - dap-dbgeng - Visual Studio Code

RUN AND DEBUG

Kernel debug (KDNET)dbgeng

Variables

Locals

drv0xffffd80a`2c1e1e30

reg0xffffd80a`2c0a4920

irqlPASSIVE_LEVEL

Watch

drv->DriverUnloadhello!HelloUnload

Call Stack

Processor 0 - paused

hello!DriverEntry

nt!IopLoadDriver

nt!IopLoadUnloadDriver

nt!ExpWorkerThread

Breakpoints

hello.c38

launch.json

hello.c

src›hello.c›DriverEntry

36▶NTSTATUS DriverEntry(PDRIVER_OBJECT drv)

37▶{

38▶ drv->DriverUnload = HelloUnload;

39▶ DbgPrint("[hello] loaded\n");

40▶ return STATUS_SUCCESS;

41▶}

>< Kernel - KDNET 50005main⨯ 0 ⚠ 0

Ln 38, Col 9Spaces: 4UTF-8C++

.vscode/launch.json

2 "name": "Kernel debug (KDNET)",

3 "type": "dbgeng",

4 "request": "attach",

5 "kernel": true,

6 "connectionString": "net:port=50005,key=1.2.3.4"

Connecting to kernel target over KDNET.

PressF5to start debugging

TARGET-VM on HYPERV - Virtual Machine Connection

FileActionMediaClipboardViewHelp

Administrator: Command Prompt

Microsoft Windows [Version 10.0.26100.1]

(c) Microsoft Corporation. All rights reserved.

The operation completed successfully.

Key=1.2.3.4

The operation completed successfully.

C:\> 

Type here to search

3:14 PM
6/7/2026

Target VM · Hyper-V

dap-dbgeng brings the native Windows debug engine to VS Code as a Debug Adapter Protocol server. Debug C and C++ programs, services, and the Windows kernel - with breakpoints, stepping, call stacks, registers, disassembly and expression evaluation - using the same engine that powers WinDbg.

Breakpoints & stepping

Kernel-mode

C / C++ & services

VS Code

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Liasoft

Native software for low-level engineers.

Built in Germany.