Change the Installation Path and checking for version.dll(64bit) path before loading

We are using 3.11.1.2318 Wix version to develop installer. Please clarify the following Questions:
1> During installation, Wix uses Temp folder to extract the cab files, can we extract the files to Program files instead of Temp.
2> If “version.dll(64 bit)” is copied to the installation folder, then “version.dll” is taken from current folder, instead of System32. Can we add a check to take only from system32 folder?

You are using the wrong Wix, you need to go here - https://wixtoolset.org/