If you have a large number of users who have extended characters in their passphrases, do not use the automatic uninstall function in the iFolder server installation program. Instead, manually uninstall the iFolder 1.x from your system and install the iFolder 2.1 version.
In a direct upgrade, the iFolder 2.1 client will not recognize the passphrase used by the iFolder 1.x client because the two clients use different formats for storing the encryption passphrase. The iFolder 1.x client uses an ANSI hash and the iFolder 2.1 client uses a Unicode* format. Whenever a user attempts to access an iFolder account through the Java applet, the login will fail and return a message prompting the user to contact the iFolder administrator to change the passphrase.
To avoid this problem, first uninstall iFolder 1.x and remove the user accounts from your existing iFolder server. Then, install iFolder 2.1 on your server.
After installing and configuring the iFolder 2.1 server, the users must install the iFolder 2.1 client on their workstations and log in to the iFolder server. The initial iFolder client login will prompt the users to enter a new passphrase. They can enter the old passphrase if they want to, because iFolder doesn't need a new passphrase; it simply needs to store the passphrase in a format that it can recognize.
By manually uninstalling iFolder 1.x and installing iFolder 2.1, you avoid the time-consuming task of manually removing each user account as the users report that they cannot log in.