> I have a database with Firebird 2.5.0 embedded which I want to access
> from a regular application started by the currently logged in user
> (member of the local workstation administrators group) and a Windows
> service application.
>
> I can do this just fine when going through a regular Firebird server
> instance via TCP/IP but I can't get it work with Embedded. I get the
> following exception when the second application tries to open the database:
>
> Database is probably already opened by another engine instance in
> another Windows session.
>
>
> Both executables are 32-bit, thus there is no mix of 32/64-bit Firebird
> servers here.
>
> When I have started the Windows service and run the regular application
> with "Run as administrator" on Win7 this works fine then, so I guess it
> is a privilege/security issue.
Yes. It was explained here
http://firebird.1100200.n4.nabble.com/SeCreateGlobalObjects-Vista-s-UAC-and-Firebird-tp1125319p1125319.html
Hope this helps,
Vlad
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