VS 2008 Program For Folder Redirection In Windows 7

I want to create several folders on a specified drive, some are up to 3 levels deep such as x:users\%username%Documents

%username% would be a folder created after the users actual user name

What I would like to be able to do is create these folders for each username that resides on computer including the "default user" however the rest of the built in windows accounts I do not need to do this with.

I then want to change the registry setting under each user, for example these two keys (their are more keys however but they all follow this except for the last part of the key where instead of personal it would be named videos or something):

HKUS-1-5-21-9999999999-999999999999-9999999999999-1002SoftwareMicrosoftWindowsCurrentVersionExplorerShell FoldersPersonal: "C:UsersTest UserDocuments"

HKUS-1-5-21-9999999999-999999999999-9999999999999-1002SoftwareMicrosoftWindowsCurrentVersionExplorerUser Shell FoldersPersonal: "%USERPROFILE%Documents"

specifically this value needs to change "C:UsersTest UserDocuments" and this one "%USERPROFILE%Documents"

However it is my understanding that this key is specific to each user based on the S-1-5-21-999999999999-999999999999 number which I believe is referred to a GUID.

I know how to create a folder, I know how to change other registry settings that have integers but I am stumped on this.