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I develop program in c# and my machine is 64 bit OS. The problem is when i run my application in 32 bit OS some dll cannot be called in the application Like Microsoft report viewer and Microsoft Interop. But other dll's are good and running. I have this problem for days and no clue what get it wrong. This is the error when the program use the Report.Viewer. 

 System.IO.FileLoadException: Could not load file or assembly 'Microsoft.ReportViewer.Common, Version=12.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
File name: 'Microsoft.ReportViewer.Common, Version=12.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91'
   at Microsoft.Reporting.WinForms.LocalReport..ctor()
   at Microsoft.Reporting.WinForms.ReportViewer.Reset()
   at Microsoft.Reporting.WinForms.ReportViewer..ctor()
JHD
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  • You need to change your application to 32 bit to use 32 bit external libraries. This question is duplicate for sure, but I'm too lazy to search the duplicate. – Julo Mar 25 '18 at 09:43
  • Duplicate: https://stackoverflow.com/a/3037672/2826535 and many, many others: https://duckduckgo.com/?q=32+bit+dll+in+c%23&t=ffnt&ia=qa – Julo Mar 25 '18 at 11:46

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