Ghost is not designed to create a hot images from server OS.
Ghost32.exe for use with Hot Imaging is only designed for use with XP and Vista.
Note: For Windows 10, limited Hot Imaging is still possible, however, we can't certify it for 100% of customer configurations.
References
Tips for Hot Imaging with Ghost Solution Suite 2.5
http://service1.symantec.com/support/on-technology.nsf/docid/2008121215010060