Worked on the microsoft/vcpkg repository to enhance the incremental build process by implementing DLL preservation, addressing a recurring issue where IncrementalClean would delete deployed DLLs. Using C++, MSBuild, and XML, introduced a new build target that ensures DLLs remain intact and registered after incremental builds, thereby reducing unnecessary rebuilds and post-build remediation. This change improved build reliability and continuous integration stability, minimizing developer intervention and downtime. The solution required collaboration across teams and careful integration with existing build systems, reflecting a focused approach to maintaining build artifacts and streamlining the development workflow for downstream users and CI environments.