Mandatory profile

Hi,
I’m trying to create a mandatory profile,on a windowsnt4.0. But it does not seem to work. I did the following: On a win98 machine I created a profile I would like to use on other win95&98 computers. I copied the user.dat file to another userslogon folder to test
(a user I created for testing) in the user profile path I put in the following:
\\server_name\testuser(folder I created)\testuser.man(sub_folder I created within testuser)and within testuser.man sits the user.man file. Permissions all apear to be okay. But it does not read the user.man.Any suggestions? Thanks