Hi Winfried Andreas,
Thanks for the update.
We would like to inform you that we had already provided Visual Studio 2013 support to our ‘Toolbox Installer’ in our latest version(220.127.116.11). If you had installed Visual Studio 2013 after installed our Essential Studio setup v18.104.22.168, then please click the ‘Recheck’ option located at the bottom of the Syncfusion Dashboard and then click Yes. Recheck option in dashboard is used to gather the installed software details to InstallInfo.xml file.
Please perform the below steps to configure our 4.5 Framework controls in Visual Studio 2013 Toolbox.
i) Ensure that .NET Framework 4.5 Syncfusion controls are installed in below mentioned GAC location.
GAC Location: C:\Windows\Microsoft.NET\assembly\GAC_MSIL
ii)If .NET Framework 4.5 Syncfusion controls are not installed in GAC, then please run the Assembly Manager from the Syncfusion Dashboard to install the .NET Framework 4.5 Syncfusion assemblies in GAC. Please refer the below link to know about Assembly Manager.
iii)Run the Toolbox Installer from the Dashboard and choose the Framework as 4.5.1 and select the required platforms and then click ‘Perform Action’ button.
iv)Now, .NET Framework 4.5 Syncfusion Controls will be configured in Visual Studio 2013 Toolbox.
Please let us know if you need any further assistance on this.