If you want multiple users to use PuTTY with the same settings you can use your login script to import settings
On windows, PuTTY settings are stored in the following registry key:
HKEY_CURRENT_USERSoftwareSimonTatham
To export settings to a file:
regedit /e putty.reg HKEY_CURRENT_USERSoftwareSimonTatham
To import settings:
regedit /s putty.reg