RetainPro Support Overview


IMPORTANT: As of June 2021, RetainPro's earth retention modules are now part of the ENERCALC Structural Engineering Library (SEL).

ENERCALC's support overview is available at

Frequently Asked Questions
Web based full documentation
Manage Your License

RetainPro has been released in many upgraded versions over many years. Those version numbers are (from oldest) : 2, 3, 3.1, 4, 5, 6, 6.1, 2005, 2007, 9 and 10.  Only the current software build is supported. No detailed technical support is available for any version but the current RetainPro major build.

To receive technical assistance please:

  • Look for an answer/solution in the documentation
  • Review our Frequently Asked Questions web page : FAQs
  • Send your questions to Do not call.
  • You MUST include your “KW” number and company name so we can verify you as a licensed user
  • Include a detailed description of your question with screen captures as necessary. Please do not assume that we’ve seen what you are describing before…. RetainPro is very well tested.
  • If you question a calculation result please identify the specific calculated value and please (1) Send your RetainPro data file and identify which calculation  you are referring to and (2) provide a hand calculation or equivalent showing what you believe the result should be. Sending printouts with item circled, your own spreadsheet calculation or output from another software program is not acceptable.