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Integrating WinCC project into Step 7 project

8/14/2025 11:54 AM	Rate (0)
djpiky Experienced Member Joined: 10/1/2015 Last visit: 9/4/2025 Posts: 22 Rating: (0)	Dear sir, i integrated standalone wincc project (V8.1) into STEP7. I used same machine for ES+OS. When i want to compile OS i recieve an error No database Engine avaliable. SQL server (WinCC) is running. Attachment s11.png (45 Downloads)

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8/14/2025 8:05 PM	Rate (0)
kustomcity Experienced Member Joined: 8/5/2008 Last visit: 9/11/2025 Posts: 86 Rating: (14)	Hello, I would check that you have all updates for Step7 and WinCC . Plus, make sure the Windows release number is compatible as this can cause various problems. I don't find this error anywhere so it is very unique. Could this be related to this particular project? Thanks, Steve

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8/18/2025 8:01 AM	Rate (0)
djpiky Experienced Member Joined: 10/1/2015 Last visit: 9/4/2025 Posts: 22 Rating: (0)	Yes, i have all the updates. Win 11 pro 24H2 Step7 5.7. SP3 Wincc V8.1.3

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9/12/2025 11:25 AM	Rate (0)
Musac Regular Member Joined: 11/1/2012 Last visit: 9/17/2025 Posts: 1 Rating: (0)	Hello, did you solved it? I have same problem. Thanks

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9/17/2025 12:49 PM	Rate (0)
Murof Platinum Expert Joined: 8/3/2009 Last visit: 9/17/2025 Posts: 16447 Rating: (1935)	Hello djpiky for compatibility of WinCC V8. with Step7 V5.7 Sp3 it is listed that you also have to use at least the Upd1 for V5.7 Sp3: https://support.industry.siemens.com/cs/de/en/view/109976902 Check if you have installed it and if not have a try Bye Murof
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