In the Visual Studio Add-in 10.1 project, open the Config.esriaddinx file and change the version to 10.0. Then recompile the project, select 'No' to ignore the 'update'. The newly created add-in file ('esriAddIn') can be used to install on ArcGIS 10.0 system.
But, again, if there's anything in the addin using new 10.1 functionality, it won't work on 10.0.
In the Visual Studio Add-in 10.1 project, open the Config.esriaddinx file and change the version to 10.0. Then recompile the project, select 'No' to ignore the 'update'. The newly created add-in file ('esriAddIn') can be used to install on ArcGIS 10.0 system.
But, again, if there's anything in the addin using new 10.1 functionality, it won't work on 10.0.
In the Visual Studio Add-in 10.1 project, open the Config.esriaddinx file and change the version to 10.0. Then recompile the project, select 'No' to ignore the 'update'. The newly created add-in file ('esriAddIn') can be used to install on ArcGIS 10.0 system.
But, again, if there's anything in the addin using new 10.1 functionality, it won't work on 10.0.
In the Visual Studio Add-in 10.1 project, open the Config.esriaddinx file and change the version to 10.0. Then recompile the project, select 'No' to ignore the 'update'. The newly created add-in file ('esriAddIn') can be used to install on ArcGIS 10.0 system.
But, again, if there's anything in the addin using new 10.1 functionality, it won't work on 10.0.