Microsoft 365 and Office | Access | Other | Windows
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Database Compare is asking for Microsoft.ReportViewer.ProcessingObjectModel.dll ver 12.0.0.0
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(204.8, 25%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EKG%3C/text%3E%3C/svg%3E)
Kavitha Gopalakrishnan
20
Reputation points
Database Compare is asking for Microsoft.ReportViewer.ProcessingObjectModel.dll ver 12.0.0.0 which is not available to download in the web. screenshot attached. How to fix?
Microsoft 365 and Office | Access | Other | Windows
Answer accepted by question author
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(0, 82%, 10%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EKG%3C/text%3E%3C/svg%3E)
Kavitha Gopalakrishnan 75 Reputation points2025-11-04T15:40:34.7433333+00:00 -
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(41.6, 25%, 14%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EGN%3C/text%3E%3C/svg%3E)
Gabriel-N 9,955 Reputation points Microsoft External Staff Moderator2025-11-05T07:02:22.2566667+00:00 I’m truly glad to hear that your issue has been resolved.
If you have a moment, please consider marking my answer as accepted, it can be a valuable guide for others who might face similar challenges. Your feedback not only helps improve solutions but also strengthens our community and makes it more supportive for everyone.
Thank you so much for your understanding and for being part of community.
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Answer recommended by moderator
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Gabriel-N 9,955 Reputation points Microsoft External Staff Moderator
2025-11-04T07:51:15.5666667+00:00 Hello Kavitha Gopalakrishnan
Thank you for posting your question on the Q&A forum.
Based on your description, I’d like to share some helpful information. The file
Microsoft.ReportViewer.ProcessingObjectModel.dll(version 12.0.0.0) is part of a larger official Microsoft installation package and cannot be downloaded separately.The error you're seeing indicates that your system is missing the Microsoft Report Viewer 2015 Runtime. You can download it from the official Microsoft site here: MICROSOFT® REPORT VIEWER 2015 RUNTIME
This runtime includes the necessary DLLs, including the one you're missing. Once installed, please restart your Database Compare tool or Visual Studio.
However, before installing the Report Viewer, please ensure that Microsoft® SQL Server® 2014 Feature Pack is installed. Make sure to choose the correct version for your system:
- x64 for 64-bit systems
- x86 for 32-bit systems
Also, ensure that the correct version of .NET Framework is installed. You can find the requirements listed in the System Requirements section of the Report Viewer 2015 Runtime download page.
I hope this helps resolve the issue. If the problem persists, please feel free to reply with more details.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
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