3 errors after installing eCart 6 now cant use dreamweaver at all

Just uninstalled eCart5 installed eCart6 and then started DW, as soon as it was opened an error came up (see image - webassist eror DW5 ) so closed this window and then got another ( see image - webassist eror DW5 - 1.1) I then closed that one and as soon as it closed another one came up (see image webassist eror DW5 - 1.2) this one froz on the screen and would not disappear at all resulting in a restart of my PC, so again opened DW and this came up again doing the same thing, so I uninstalled DW and Re installed it along with all extensions and still get this large list of errors freezing the PC

Dreamweaver CS5 11.0.4.4993
OS- Windows 7 Ultimate
other extensions installed see image - extension manager

reset the workspace layout:
go to Window -> Work Space layout -> Reset '<your layout name>'

and Delete the Dreamweaver Cache file from the users configuration folder:
http://www.webassist.com/tutorials/Common-installation-issues

forgot to say that all that has already been done

recreate the users configuration folder, then unisntall and reinstall eCart:
http://helpx.adobe.com/dreamweaver/kb/troubleshoot-javascript-errors-dreamweaver-cs4.html#main_user_config

the Dreamweaver preferences registry entries. there is no file with that name but plenty of files with preferences in the title, any idea what has to be deleted

I dont follow what you mean.

you only need to rename the users configuration folder, then uninstall and reinstall the extensions.

ok was following the adobe help link and it said to delete the Dreamweaver preferences registry entries. so configuration folder is renamed do I need to uninstall all extensions or just ecart and then re-install?

uninstall all extensions, then reinstall.

All done and working fine, Thanks

glad to hear it is working.