s7epaapi64x.dll missing from S&Plus Driver

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mikek10
Posts:20
Joined: Wed Jun 26, 2019 4:05 pm

s7epaapi64x.dll missing from S&Plus Driver

Post by mikek10 »

Hi,

I have WinccOA v3.17.03 running on Windows 10, this has been working fine but today I have started getting an error when trying to start S7Plus Driver: "The code exectution cannot proceed because s7epaapi64x.dll was not found. Reinstalling the program may fix this problem".

I have tried running the installer on repair but this has had no effect. I am reluctant to completely uninstall and reinstall unless absolutely necessary. I have searched HDD for this file and it is in the folder: C:\Program Files\Common Files\Siemens\Automation\Simatic OAM\bin

EDIT:
I bit the bullet and did a complete uninstall and reinstall but the same problem remains! :cry:

EDIT 2:
TIA Portal has also started crashing when trying to go online, it is reporting: 'Siemens.Automation.OnlineAccess.S7DosWrapper.dll' missing
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leoknipp
Posts:2928
Joined: Tue Aug 24, 2010 7:28 pm

Re: s7epaapi64x.dll missing from S&Plus Driver

Post by leoknipp »

I checked our source code a little bit and It looks like the dll file is part of the S7DOS installation.
Can you please check the installation for S7DOS on your system.

Best Regards
Leopold Knipp
Senior Support Specialist
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2 posts • Page 1 of 1

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