Most likely you have not compiled/configured the required php library.

Since this is not an issue about MantisBT, I'm resolving this issue. Please use the forums for support.

This does not work in PHP 5.3. It has got sqlsrvr services instead of mssql services used until now. MANTIS installation does not work with sqlsrvr services.

Again, this is not a problem with MantisBT.

The installation script checks for existence of function mssql_connect(); if that is not available in PHP, Mantis won't install. Please check your PHP configuration.

There is change in MS SQL service name from mssql to sqlsrvr. For this change in mantis necessary for SQL connection. This is a change needed in MANTIS for php5.3

@dregard,

As PHP5.3 has stopped support to MSSQL, one needs to install SQL driver for PHP and this uses sqlsrvr class instead of legacy mssql class.

This is the updation needed in MANTIS setup to accomodate sqlsrvr service and related API.

OK, I get your point (finally) - did not realize you were not using the mssql driver. Apologies.

Support for sqlsrv driver is a known issue, please see 0011776. I'm marking this one as duplicate, and will add you to the monitoring list of the other issue so you'll be notified of any progress.

Thanks a ton. shall monitor the known issue now