Merging internal commits for release/6.0 #104624
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## Description Since Windows 10 Build 20348, there is a new API to get the temporary files path called [`GetTempPath2`](https://learn.microsoft.com/windows/win32/api/fileapi/nf-fileapi-gettemppath2w). This API returns a directory inaccessible to non-SYSTEM processes if the calling process runs as SYSTEM, and [it is recommended to call this function instead of `GetTempPath`](https://learn.microsoft.com/windows/win32/api/fileapi/nf-fileapi-gettemppathw#remarks). This PR tries to find `GetTempPath2A` / `GetTempPath2W` and uses that, otherwise it falls back to `GetTempPathA` / `GetTempPathW`. *Note:* this PR removes an unused function called `WszGetTempPath` that which referenced GetTempPathW ## Customer Impact - [ ] Customer reported - [X] Found internally This was found by code inspection. ## Regression - [ ] Yes - [X] No ## Testing PR validation ## Risk Low Cherry picked from !40221 Cherry-picked from commit `c845a53e`.
CHILD: .NET CORE | ElevationOfPrivilege: Microsoft.IO.Redist part (and a build fix) It turned out that https://dev.azure.com/dnceng/internal/_git/dotnet-runtime/pullrequest/39614 was incomplete and caused a build break. The code was compiling fine for the default config (.NET 6), but not Full Framework, which includes Microsoft.IO.Redist which compiles the affected files. I could not use exact same fix for Framework as for 6.0 as the code was using umanaged function pointers and causing error CS8889, so I've applied the same fix I did for Full Framework.
…-merge-6.0-2024-07-09-1042-98fecf81-edc8-4572-91c4-980c898d80b1
This was referenced Jul 9, 2024
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