Question : The MAPI call 'OpenMsgStore' failed with the following error, mailbox store cannot be accessed

I am having a problem with my exchange server 2003 on win 2k3.
The MAPI call 'OpenMsgStore' failed with the following error:
The attempt to log on to the Microsoft Exchange Server computer has failed.
The MAPI provider failed.
Microsoft Exchange Server Information Store
ID no: 8004011d-0512-00000000
Thats the error and i cannot get it back up and running. the problem is all the logs and datbase on are getting stored on C: which only has 48 gig.  our d drive has 1 TB.  how do i move database and logs to d drive so they have room and i guess that will get it back up and running. the company is down and i need help! thanks

Answer : The MAPI call 'OpenMsgStore' failed with the following error, mailbox store cannot be accessed

don't cancel it.
it is still moving the files
check your application logs for any related errors.
you can also check the new location for the database size