It does not seem that we do a good job of cleaning up after ourselves in Windows after uninstalling. Perhaps this is intentional but I would think we should at least give an option for complete removal.
While working on the packing problem, I scoured through file system and registry to ensure I had cleaned everything. The ~/.x2go directory remained in place after uninstalling. We also left the registry entries in place.
I also noticed there were Cygwin entries in the registry. I do not know if these were left over from the 3.0.1-4 installation or from Pyhoca. We do not want to delete them if there is an independent Cygwin installation but, if the only one is the one installed by an old x2goclient, I would think we should remove references to it in the registry - John