Resolution - Error 2501: The OpenForm Action Was Canceled


This addresses an issue that may arise after installing specific Microsoft updates released on August 14th, 2012.

Error 2501 occurs when opening Maintenance Management
You get the following error message when starting the program:
Error: 2501
Description: The OpenForm action was canceled


This symptom may occur after applying one or more of several Microsoft security updates that affect specific files Maintenance Management requires to run. These updates are described in Microsoft security bulletin MS12-060. The known updates that can cause this problem are:

  • Security Update for Office 2003 (KB2687323): MSCOMCTL
  • Security Update for Microsoft Office 2007 suites (KB2687441)
  • Security Update for Microsoft Office 2010 (KB2597986)


To fix this problem, uninstall and re-install MicroMain Maintenance Management.

See related issues