build_installer.bat now looks in both C:\Program Files and C:\Program Files (x86) for advinst.exe.
build_installer.bat now looks in both C:\Program Files and C:\Program Files (x86) for advinst.exe.

acmorrow/pion-core,acmorrow/pion-core,acmorrow/pion-core,acmorrow/pion-core,acmorrow/pion-core,acmorrow/pion-core,acmorrow/pion-core