PC*Miler Connect & Rail

Quick Tips for Using Connect APIs

The PC*Miler Connect DLL is named PCMSRV32.DLL or PCMSRV64.DLL. It can be called by any language that can call DLLs using the Pascal calling convention. Sample code is also provided with PC*Miler Connect to help show how to use many of the Connect APIs. Other tips:

  • We recommend that you use trip-based APIs (e.g. PCMSNewTripWithRegion) instead of CalcDistance APIs.
  • Make sure your interface isn’t calling deprecated APIs – you can turn logging on to check this.
  • Use the decimal degree latitude/longitude format with 6 digits after the decimal for improved routing accuracy. (For example, 45.606856 N, 122.766545 W.)
  • Use PCMSGetFmtMatch4 to get decimal degrees when validating addresses.
  • The above tips for lat/longs are a requirement for any product that is identifying a location for navigation in CoPilot Truck.

PCMSRV32.DLL and PCMSRV64.DLL are installed in the C:\Windows directory. Starting with version 32, backup copies are available in the C:\ALK Technologies\PCMILERXX\App folder. These files are titled PCMSRV32.DLL.32 and PCMSRV64.DLL.64.

Last updated July 7, 2025.