@PeterJones said: If you’ve got steps that work for doing a local debug build, that would be helpful. > where cmake C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\Common7\IDE\CommonExtensions\Microsoft\CMake\CMake\bin\cmake.exe > type .\build_gup.ps1 param ( [string]$Configuration = "Debug", [string]$Platform = "x64" ) if (-not $(Test-Path "${PSScriptRoot}\wingup\.git")) { git clone --single-branch https://github.com/notepad-plus-plus/wingup.git wingup } try { pushd "${PSScriptRoot}\wingup" $CmakeArchParam=$(if ("$Platform" -imatch "x86") {"Win32"} else {"$Platform"}) $LibPlatform=$(if ("$Platform" -imatch "Win32") {"x86"} else {"$Platform"}) cmake -S ".\curl" -B ".\curl\build\$LibPlatform" -A $CmakeArchParam ` -DBUILD_SHARED_LIBS=OFF ` -DCURL_STATIC_CRT=ON ` -DBUILD_CURL_EXE=OFF ` -DCURL_USE_SCHANNEL=ON ` -DCURL_USE_OPENSSL=OFF ` -DBUILD_TESTING=OFF ` -DUSE_LIBPSL=OFF ` -DCURL_USE_LIBPSL=OFF ` -DUSE_NGHTTP2=OFF ` -DUSE_LIBIDN2=OFF cmake --build ".\curl\build\$LibPlatform" --config $Configuration pushd vcproj msbuild GUP.sln /v:m /p:configuration=$Configuration /p:platform=$LibPlatform popd } catch { $_.InvocationInfo.PositionMessage; $_.Exception.Message } finally { popd } > powershell .\build_gup.ps1 Debug x86 # ...

Hello, @coises and All, I understand that focusing on N++ buffers, instead of on saved files on disk, is not really appropriate for your multithreaded approach ! You said : I am more inclined to raise a warning box telling the user that some of the files to be searched are currently open in Notepad++, and the search results (and modifications, when I get Replace in Files done) will apply to the stored files, not to the edits in progress in Notepad++. So, given, your constraints, I totally agree ! That seems the more simple and obvious solution, with a Cancel button in case some concerned and opened files are dirty, in current N++ session On the other hand, you said : I wonder if any of this works properly when users have multiple instances of Notepad++ open and the files are open in a different instance than the one doing the search? I personally mainly use N++ in a N++ mono instance so I can’t speak properly of that case. But I agree with you that managing several instances must be a challenge for the Find in Files or Replace in Files feature ! Best Regards, guy038

Hi! A bit late, maybe my ZeroBasedColumn plugin could help with what you’re looking for. It makes the column numbering in Notepad++ start from 0 instead of 1. https://github.com/pasqualeambrosio/ZeroBasedColumn Hope it helps!