This string

Evaluates to

%D

The user’s User profile.

For example, if the server is running on Windows Server 2003 and the user name is "joe", %D\.ssh2 will typically be equivalent to:

C:\Documents and Settings\joe\.ssh2

%H

The user's Home folder.

By default this is the same as the User profile, but the Windows system administrator can specify a different location.

%u

The user’s login name.

For example, if the user name is "joe", ssh_users\%u is equivalent to:

C:\ssh_users\joe

Notes:

• With this option, the server is unable to distinguish between a local and domain user with the same user name — both are given access to the same directory.
• Do not use %u to specify a location in the Windows profile folder. Depending on how users have logged into the server host previously, the user-specific subdirectory in the profile path may be just a user name, or may be both a user and domain in the format "user.domain".

%U

The user's domain name and login in the format "domain.username".

For example, if "joe" logs in from the "sky" domain (sky\joe), ssh_users\%U\ is equivalent to:

C:\ssh_users\sky.joe

Note: Do not use %U to specify a location in the Windows profile folder. The format for specifying user and domain in the Windows profile path is "user.domain", which is the reverse of the order specified by %U.