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Getting Started

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SOLIDWORKS PDM Professional Application Programming Interface

SOLIDWORKS PDM Professional’s application programming interface (API) gives you access to most of the functionality in SOLIDWORKS PDM Professional. For example, you can programmatically:

See the Release Notes for the updates made to recent releases of the SOLIDWORKS PDM Professional API.


You can write two types of applications using this API:

  1. Stand-alone applications (.exe and .dll) that are called by other programs to use various features of SOLIDWORKS PDM Professional.
  2. Add-in applications that are called by SOLIDWORKS PDM Professional when users perform actions like check in or check out of a file, add a file to the vault, change the state of a file, etc.

Primary Assembly Interops

SOLIDWORKS PDM Professional includes two primary interop assemblies (also called interops) for use with stand-alone SOLIDWORKS PDM Professional applications:

  • EPDM.Interop.epdm.dll
  • EPDM.interop.EPDMResultCode.dll

The interops are stored in the top folder of your SOLIDWORKS PDM Professional installation.

  • 32-bit interops are shipped with the 32-bit version of SOLIDWORKS PDM Professional.
  • 64-bit interops are shipped with the 64-bit version of SOLIDWORKS PDM Professional.

See Using .NET Framework 4.0 in Stand-alone Applications for more information.

See Also

Return Codes

TroubleShooting Guide

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