Backup with command line

[Seppel]

Hi all,

I would like to backup a single file hosted on FMS9 on XP SP3.

I simply use the following command line to backup the file:

fmsadmin -u admin -p password "file.fp7"

It works fine.

fmsadmin -u admin -p password "file.fp7" -d "D:_filemaker_projectsXYZBackup"

returns every time the error 20500.

Everyone an idea what this error means?

Best

Seppel