Article - CS103001
Error to specific user "Conversion failed. User could not start Mathcad conversion process" while converting legacy Mathcad 15.0 worksheets in Mathcad Prime
Modified: 23-Sep-2025
Applies To
- Mathcad Prime 1.0 to 11.0
Description
- Error to specific user "Conversion failed. Could not start Mathcad conversion process" while converting legacy Mathcad worksheets in Mathcad Prime
- Mathcad Prime with parallel installed Mathcad 15.0 M010 does not convert .xmcd files to .mcdx with error message:
- Mathcad conversion process could not be started.
- Examples from the log file: C:\ProgramData\PTC\Mathcad Prime\Logs\MathcadPrime_Exception_<date>_<time>
- Exception data: System.Runtime.InteropServices.COMException (0x80004005): E_FAIL_MATHCAD_COM_WAS_NOT_STARTED --->
- System.Runtime.InteropServices.COMException (0x80080005): Retrieving the COM class factory for component with CLSID {94FBBD40-E791-4E8C-8F21-FA7A724654DA} failed due to the following error: 80080005 Starten des Servers fehlgeschlagen (Exception from HRESULT: 0x80080005 (CO_E_SERVER_EXEC_FAILURE)).
- System.Runtime.InteropServices.COMException (0x80040CB6): Unknown Error at mcautomation.IMathcadWorksheets.Open(String pFileName) at ConverterLoader.Xmc...
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