I had a simple .NET application successfully developed and deployed to a
production environment.

Out client required another application, which is slightly different from
the first application.

So I basically use the first application to develop the second application.
I have successfully deployed the second application in my development PC, and
it works absolutely fine. So I decided to deploy the application in the
production.

First I deployed the application, in a PC that the login user has the
administrative rights, The application was successfully deployed and it
worked perfectly.
Then I try to install the application in the work stations that the login
users do not have administrative rights to their PCs. When I double click my
MSI, I ended up with the following error message.

“This advertised application would not be installed because it might be
Unsafe. Contact your administrator to change the installation user interface
option of the package to basic.”

I tried the following options
-------------------------------
- Change the Group Policies UI option to basic.
- Tried login as an administrator that PC, and tried deploying it.
- Workstations use the Active directory, and I changed the active directory
UI option to basic.

I still have the same error. Please help me this pretty urgent.