If you aren't forced to use legacy hardware, consider these modern paths:
You need the specific BSP for your ARM hardware to target ARMV4I correctly. Windows ce 5.0 platform builder with armv4i download
To build for (the standard for most ARMv4/v5 chips), ensure you have these components: Platform Builder 5.0 Base: The core IDE and build engine. Standard SDK: For application development. If you aren't forced to use legacy hardware,
Finding a legitimate download for is difficult today because Microsoft has officially retired the product and ended its extended support. ⚠️ Important Notice End of Life: Support ended in 2014. Finding a legitimate download for is difficult today
I can provide more specific depending on your setup.
The IDE is notorious for not running correctly on Windows 10 or 11; use a VM (Virtual Machine) running XP or Windows 7. Modern Alternatives
Sites like Archive.org often host ISO images of older development tools uploaded by preservationists. Search for "Windows CE 5.0 ISO." Technical Requirements for ARMV4I