Thanks a lot for your help, i found the problem. After your detailed instruction how you do your upgrades, i was sure that the problem is not the process of upgrading but there must be something else inside the 4.3.7 package. At the end i found a minor error in the new starter kit - when you (re)compile the code / site / modules and start a debugger sesssion you can not connect to the (local) testsite. This didn't happen on 4.3.5. I hope it will be fixed in the next version - i personally like the VS with the ASP Debugger.

I know changing the code of a framework when you are not involved in the development team/process brings a lot of troubles and besides extra effort when you have to upgrade a system. As you've seen that my english is not so good - i'm living in austria. Some of my customers need a special language selector which does not met the standard code - the modules we intend to purchse are of course compatible to the standard code / framework.

Thanks again for your help an best wishes from austria

guy