Not Able to Expire the Tape

Hi All,

We are running NBU 7.0 on W2k8 Box. And i had some set of Tapes that needs to expire Manually and need to reuse for Backup, but the i'm facing the below issue and if i see the bpxpdate file in install path its with "0"kb. does the file is corrupted? if its corrupted can i copy some other W2k8 box "bpexpdate" file and can replace ? does it works with out creating any problem to my setup? please suggest me on this.

FYI

:\Program Files\Veritas\NetBackup\bin\admincmd>bpexpdate.exe -m a00030
Access is denied.

:\Program Files\Veritas\NetBackup\bin\admincmd>