Hi, It is not playing. It should be done to have the cure.
Ok. What about the dependency services , that are also to be started and set to automatic. You said that VSS set to manual. It should be set to Automatic.
The dependency services may be seen in the VSS tab itself. You note it and then make it also started and set to automatic.
edit: it is default manual.
It is not risky to change or remove an item from registry , in this case Disabled config. Because this key has been started by some infection program. It made the key, and it is not a system key. Understand. By exporting this key totally , Just click on the key and export and export to desktop or anywhere. This is a known issue and your computer booting has nothing to do with this key. So, go to your search box. type run.press enter. On the open Run box type regedit and you get registry editor.
There you will have those hklm on the left side of the window. Just go through the path shown in my link. Just find the system restore folder. When you click this, there may be items shown in the right side of the window. If there is a key named Disabledconfig, you just export the key to your desktop. I would delete the key. But as you express your reluctance using regedit, i ask you to export, it will be exported to desktop, if you choose the desktop as destination folder. Now just close the Registry editor by closing x mark on the top of the right corner.
Now try system restore if it is working. Probably will work, because you have removed trojan and the registry key it has injected or modified. OK. If you leave, if any other key is deleted, it will automatically recreate. Are you clear now?
Did you see the four files in your system32 folder. If there is missing of these application extension, then you have to copy those files either from some other computer having the same version of OS and replace in the same folder. It may fix .
System restore is a main thing and if you cannot create or system does not create, then your trojan, which has been deleted may inject again.
As a last resort, you could use your vista dvd, and then booting thro, it you could do the system restore by selecting repair computer menu at the set up window. This is also one of the easy method if you know how to boot from dvd
edit: the component services by this VSS, like dcom and rpc services have so many dependencies and look and correct those entries are cumbersome. It has so much dependencies that it is having more than 10 sub components.