
In the vast majority of cases, the solution is to properly reinstall steam_api.dll on your PC, to the Windows system folder. Try installing the program again using the original installation media or contact your system administrator or the software vender for support.

Try reinstalling the program to fix this problem. The program can't start because steam_api.dll is missing from your computer.The most commonly occurring error messages are: For instance, a faulty application, steam_api.dll has been deleted or misplaced, corrupted by malicious software present on your PC or a damaged Windows registry. Note – AGEIA PPU acceleration support for 2.8.1 SDK or earlier, and Windows Vista and Windows XP only.Errors related to steam_api.dll can arise for a few different different reasons. AGEIA PhysX processors users should use and install older PhysX system software such as version 8.09.04.(Requires graphics driver v196.21 or later). Supports control of your GPU PhysX configuration from the NVIDIA display driver control panel.Experience GPU PhysX acceleration in many games and demos, some of which are highlighted in PowerPack downloads here.Note: Some applications may have higher minimum requirements. Supports NVIDIA PhysX acceleration on all GeForce 8-series, 9-series, 100-series, 200-series, 300-series and 400-series GPUs with a minimum of 256MB dedicated graphics memory and 32 CUDA cores.Fixes a bug that prevented PhysX from being accelerated on Optimus PCs.

Includes the latest PhysX runtime builds to support all released PhysX content.
