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BizTalk : Runtime assembly loading issue , Could not load file or assembly

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BizTalk : Runtime assembly loading issue , Could not load file or assembly



If you require a specific version of  assembly to be loaded at runtime when your BizTalk application run. This requirement could be implemented by adding a required assembly setting in BTSNTSvc.exe.config. In biztalk config file you need to specify the old and new version of assembly that need to be loaded at runtime.



Following setting could be added in your BTSNTSvc.exe.config file with proper assembly details.



Using this Binding Policy in config, we can load the any required assembly at runtime..



<runtime>

                                <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">

                                                <dependentAssembly>

                <assemblyIdentity name="BTSales.DataAccess" publicKeyToken="89b653f429c47342" culture="neutral" />

                    <bindingRedirect oldVersion="2.111.7.0" newVersion="4.112.1.2"/>

            </dependentAssembly>

                                </assemblyBinding>

                </runtime>


After implementing the above changes in BtsntSvc.exe.config file, if you are still getting this error while using  BTAdmin console then  update the BTSMMCLauncher.exe.config  file same as above. This will resolve your design time assembly loading issue.
Added following  thing in BTSMMCLauncher.exe.config , Reopen your BTS Admin console.
<runtime>

                                <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">

                                                <dependentAssembly>

                <assemblyIdentity name="BTSales.DataAccess" publicKeyToken="89b653f429c47342" culture="neutral" />

                    <bindingRedirect oldVersion="2.111.7.0" newVersion="4.112.1.2"/>

            </dependentAssembly>

                                </assemblyBinding>

                </runtime>
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