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Error: "713: Class not registered"

This support note applies to:

  • Profiles (AU)
  • AE Tax Series 6 & 8 (AU)

These instructions require technical expertise

Make sure you know what you're doing and are using one of the products listed. If you're not sure, ask your IT professional or MYOB.

Article ID: 26179

In MYOB Accountants Enterprise (AE), when opening Datasafe the following error message may appear "Environment Error 713: Class not registered".

On opening Datasafe the system is looking for the correct version of the file MSSTDFMT.DLL. If the file that is located on your system is not correct, it will not allow Datasafe to open.

To fix this error you need to install the MSSTDFMT.DLL file on your workstation.

A copy of your MSSTDFMT.DLL should be installed locally. This location can vary depending on your operating system. The file may appear in the following locations:

  • C:\Windows\
  • C:\Windows\System\
  • C:\Windows\System32\ or
  • C:\Windows\SysWOW64\
Another copy will be found in the Setup directory for MYOB.

To fix this error, complete these 4 tasks:

1. Search for the MSSTDFMT.DLL file
  1. Simultaneously press the Windows key + E on your keyboard. Windows Explorer opens.
  2. Click to select the C:\ drive.
  3. Type MSSTDFMT.DLL in the Search field. The search results display the relevant location.
  4. Take note of where the MSSTDFMT.DLL file is located.
2. Unregister the MSSTDFMT.DLL file
  1. Click Start and select Run. The Run window opens.
    If you don't have the Run menu option, press the Windows key + R on your keyboard.
  2. Type Regsvr32 /u msstdfmt.dll in the Open field and click OK. The message 'DllUnregisterServer in msstdfmt.dll succeeded' appears.
  3. Click OK.
3. Replace the MSSTDFMT.DLL file
  1. In Contacts, from the Help menu, select About MYOB Contacts. The About MYOB AE Contacts screen appears.
  2. Click Application details. The MYOB AE Contacts Application Details screen appears.
  3. Note the Installed Location, e.g. s:\MYOB\bin and click OK. The About MYOB AE Contacts screen appears.
  4. Click Close. The Contacts screen appears.
  5. At your Windows desktop, from the Start menu, select Run. The Run window appears.
  6. Type the location of your MSSTDFMT.DLL file, e.g. C:\Windows\system32 in the Open field and click OK. The files and folders within this directory appear.

  7. Highlight MSSTDFMT.DLL and from the File menu, select Delete. The file is deleted.

    Don't delete the file from your MYOB Setup directory.
  8. Navigate to your setup directory for example S:\MYOB\Setup, highlight the files MSSTDFMT.DLL and MSSTDFMT.INF, and from the Edit menu, select Copy. The files are copied to the clipboard.
  9. Navigate to your local machines system directory, e.g. C:\WINNT\system32, and from the File menu, select Paste. The files MSSTDFMT.DLL and MSSTDFMT.INF are pasted to your system directory. 
4. Register the MSSTDFMT.DLL file
  1. At your Windows desktop, from the Start menu, select Run. The Run window appears.
  2. Type regsvr32 C:\WINNT\system32\msstdfmt.dll in the Open field (replace the relevant path to your file in the command) and click OK. The prompt 'DllregisterServer in msstdfmt.dll succeeded' appears.
  3. Click OK.
  4. Test Datasafe and run a Check Now.

MYOB INTERNAL STAFF ONLY

Heat reference 1033219

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