Fatal installation error

A fatal and unrecoverable database error has occured. This may be because the specified user does not have appropriate rights to CREATE TABLES or INSERT data, etc. Further information may be given below. Please contact your hosting provider in the first instance or the support forums of phpBB for further assistance.

d:\programme\apache group\apache\htdocs\phpbb2\install\install.php [ 1100 ]

SQL : ALTER TABLE [phpbb_sessions] WITH NOCHECK ADD CONSTRAINT [DF_sessik_key_id] DEFAULT ('0') FOR [key_id], CONSTRAINT [DF_sessik_user_id] DEFAULT (0) FOR [user_id], CONSTRAINT [DF_sessik_last_ip] DEFAULT ('0') FOR [last_ip], CONSTRAINT [DF_sessik_last_login] DEFAULT (0) FOR [last_login]

[Microsoft][ODBC SQL Server Driver][SQL Server]DEFAULT für Spalte 'key_id' konnte nicht erstellt werden, da dies keine gültige Spalte in Tabelle 'phpbb_sessions' ist.