You can run Windows Server 2003 32-bit on a Raspberry Pi (via QEMU) or a low-end VPS with 512MB of RAM. It takes less than 10 seconds to boot from an SSD.
Windows Server 2003 reached its End of Life (EOL) on July 14, 2015. While official retail downloads for the full operating system are no longer available, specific service packs and legacy resources can still be found through official and community channels. Ontech Systems, Inc. Official Downloads (Service Packs) Windows Server 2003 Iso 32 Bit
| Specification | Detail | | --- | --- | | | x86 (32-bit) | | Maximum RAM | 4 GB (Standard) / 64 GB (Enterprise via PAE) | | Minimum RAM | 128 MB | | Minimum CPU | 133 MHz (Pentium-class) | | Disk Space | 1.5 GB to 2 GB | | File System | NTFS, FAT32 | | Service Packs | SP1, SP2 (Critical), SP3 (Final) | You can run Windows Server 2003 32-bit on