exchange system manager gives error C0070002 also with active directory

After a log file from 3rd party software took all remaining space on the C drive (20GB log file since removed). Administrator account is not functioning properly. when opening active directory or exchange System manager I recieve the error C0070002 ("The system cannot find the file specifed" facility win32 exchange system manager) I have seen that another person had the error and adding another user to the domain admins group solved thier problem ( however

If I try and modify a user to add to the domain admins group I get the error:
Snapin Error "MMC has detected an error in a snap-in. It is recommended that you shut down and restart MMC.
Report this error to Microsoft, and then shutdown MMC. (sends me to a 404 web page on microsoft)
Ignore this error and continue running (does nothing)

I also am unable to add an additional account.
Through the add user wizard I get the error:
The wizard could not successfully configure this user account. The following could not be completed:
-A home folder could not be created for this user.
-Quota information could not be set.
Do you want to keep this user account (yes/No) "answering Yes does not keep account"

To make matters worse administrator now logs in with a blank password. making security less then effective.

Any help would be much appreciated.
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Matthew MillersCommented:
Are there any events in the event log?
Have you tried rebooting the server since you freed up some space?
darkcapeAuthor Commented:
the only event I am getting in the event log that is sort of interesting is about nearing the license limits. and licencsing says we are using 5 of 9 so i'm not worried about that one.

I have rebooted multiple times and made sure that all updates have been added. (with the exception of SP2)
darkcapeAuthor Commented:
After following a suggestion from another newsgroup I tried sharing the directory "Users shared folder" as users locally with administrator having full rights.

after this an error was produced in the application logs. which kind of makes sense to me as the shared folders are located on \\server2\users (I can still manuver to them with out being prompted for a password).

--- error ---
Event ID: 111
"Unable to apply folder redirection policy, initialization failed"
File Name fdeploy.dll
version 5.2.3790.2830
--- end error ---

again any help would be apprciated.
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darkcapeAuthor Commented:
And just for clarification this is all logging on to the SBS server locally no remote desktop.
darkcapeAuthor Commented:
I have seen a response that sounds like the answer from here. explaining that the user does not have access to its registry hive? I am ok reading through the registry but would like any kind of information on user acces to the registry hive.

darkcapeAuthor Commented:
The solution to the problem is. rename all c:\documents and settings\administrator* directories and then have the administrator log back in thus recreating its profile ntuser.dat file and all other pieces.

The way I had to do it was rename all but the active directory then close out of all administrator sessions. from another desktop goto run and open \\server\c$ find documents and settings and rename the last directory.

OH look I get to claim my own points :-(

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