I insatlled an instance of SQL express on my machine and then i installed my applicaion (developed in VB.net) ...its working fine. Then I handover the machine to the actual user..when this user login with his login ID and try to run the application it fails. What settings can be done in order to run the applicaion so that any user if try to run the application with his/her ID.

rohit

What is the exact error message? That will help narrow down the issue.

Quite possibly a security issue...
There are three groups that are default logins after installation that the 'users' need to be a member of.
BUILTIN\Administrators
BUILTIN\Users
<machinename>\mahcinename\SQLServer2005MSSQLUser$< machinename>$SQLEXPRESS

If the user cannot be a member of one of the groups, they will need to have a sql login manually added.

Adam Gossage
Lake Wylie, SC, USA