altiris - error -99 while imaging-process

Good Morning,

I have a problem with my Altiris. My Windows 7 deploy is not working and I don't know why.

I get only a message "error -99 while imaging-process". The communication to my computer is working. (booting in WinPe OK, DAgent OK) I checked the access for the path. It's OK...

Now I have no Idea why it's not working. Please help me...!

Here you can see my Job-Status...

My jobconfiguration.

Thanks for help!

best regards

Mathias