At 01:28 AM 11/03/2007, you wrote:

>I have been running Firebird 1.50 for several years with an embedded
>installation using InstallShield. When installing under Windows Vista
>all the files install properly, but I am unable to install the Windows
>Service using the command "instsvc i" which I have used under Windows
>98/200/XP. I receive the following error message:
>
>Error occurred during "OpenSCManager".
>Access is denied.
>
>The Windows Vista User has full administrator rights. I seem to be
>stumped with this problem. Does anyone know what the solution is to
>this problem?
>
>Any help will be greatly appreciated.

Read the Vista manuals?

This will probably help: follow the links to the related articles, too.

http://www.howtogeek.com/howto/windows-vista/disable-user-account-controluac-for-administrators-only/

./hb