Error: I enter correct login and password but receive Invalid Login error.
I use SQL Server.

In the database change types of username and password fields from CHAR to VARCHAR. If these fields are specified as CHAR with fixed length, for example CHAR(10), then username and password that are written to the database are padded with trailing spaces up to the fixed length.

Besides, you need to remove trailing spaces in usernames and passwords.

Applies to:
ASPRunner Pro
ASPRunner.NET
PHPRunner