The "link" referred to in your search query likely means a migration path – either a patch that allows both versions to coexist, or a tool that converts projects from 13 to 17. DumpTeam sometimes bundled such migration utilities in their releases.
While these tools were sought after by developers looking to avoid high licensing costs, they come with substantial risks: Security Hazards dumpteam windev 17 13 link
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is not an official PC SOFT product. Instead, it refers to a community-driven or third-party developer (or group) known for producing tools, patches, or link scripts that facilitate the integration of unconventional or legacy libraries into WinDEV 13 and 17. The term "dump" hints at the process of extracting symbol tables, function exports, or memory mappings from compiled binaries (like .dll or .obj files) to make them accessible within WinDEV’s linker. The "link" referred to in your search query