One of the most infamous issues in the base SPB 16.5 release is a memory leak in OrCAD Capture. Users report that after creating a project with more than 20 schematic pages, the software crashes when trying to open the design cache or annotating components. specifically patched the Capture.exe heap allocation routine.

Addressed a critical crash occurring during . PSpice & Simulation :

: Addressed compatibility requirements for Windows Vista, requiring at least Service Pack 1 for stable 16.5 operation.

Even with the latest , some issues remain unfixed due to the software’s age: