I am restoring a legacy Precision Flight Controls Cirrus II simulator running Windows XP SP3 32-bit and Microsoft Flight Simulator X. I am trying to locate an older XP-compatible copy of FSUIPC4 v4.957b, or another confirmed pre-4.96 version that works with XP SP3 and FSX. The current FSUIPC4 releases no longer support Windows XP. A recent FSUIPC support discussion confirmed that 4.957b has been successfully installed and used on XP SP3 32-bit with FSX, but the current maintainer no longer has the older installer available. If anyone has the original FSUIPC4 4.957b installer/package from a legitimate archive and would be willing to share it, I would greatly appreciate it. The simulator uses a serial PFC Cirrus II console on COM1. I already have the current official PFC DLL package; the missing piece is the XP-compatible FSUIPC4 version. I am specifically looking for an original, unmodified installer/package — not a cracked or altered copy. thank you very much