If you start an Exchange mailbox restore operation with the bprestore command and encounter a status 5 error, check that the path is correct. The bplist command does not properly escape the "[" and "]" characters.

For example, bplist returns the following path for a mailbox:

/Microsoft Information Store/SG1/Mailbox1/backrest100 [backrest100]/

Instead, edit the path so it appears as follows:

/Microsoft Information Store/SG1/Mailbox1/backrest100 \[backrest100\]/