What's the use of CLSEpicor.dll

What the use of CLSEpicor.dll

I think you’ll have to provide a lot more context to motivate anyone to answer that

after upgrade SQL Server 2016 to 2017 reports not working due to below errors
Failed to load expression host assembly. Details: Could not load file or assembly ‘CLSEpicor, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null’ or one of its dependencies. The system cannot find the file specified.

Searching the forum for “CLSEpicor.dll” turns up several posts, including this one:

that post is about VS editor. For SSRS it should be in Report Server folder, in my case it is in “C:\Program Files\Microsoft SQL Server Reporting Services\SSRS\ReportServer\bin”

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So Epicor has a couple of custom DLL’s that they use to turn numbers into words (for checks among other things)

These DLL’s are installed in your
C:\Program Files\Microsoft SQL Server Reporting Services\SSRS\ReportServer\bin

When you first deploy epicor and this DLL is one of those.

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Do you think that redploying the Report Service in the Admin Console would take care of this?

Yes re-deploying should, I would check the Import Reports when you do just make sure you have good SSRS backups and make sure the account you are deploying with has full rights to
C:\Program Files\Microsoft SQL Server Reporting Services\SSRS\ReportServer\bin

or if using a separate SQL DB

\\remote\Program Files\Microsoft SQL Server Reporting Services\SSRS\ReportServer\bin
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Thanks, Issue resolved :slight_smile: