Explorer: application drag'n'drop

I've installed an application on my Vista box which is not behaving as it
does on WinXP, in terms of the Explorer shell. If I double-click on an
associated file a new instance of the app is launched (on WinXP it would
first attempt to re-use a runnning version); also, if I attempt to drag an
associated file into the app's editor from Explorer, nothing happens (on
WinXP it would open the file).

The offending app is Delphi 7, which is listed with compatibility problems
in Vista.

Are there manual, Registry-based, fixes for these features?

NO!

"Craig Ward" wrote:

> I've installed an application on my Vista box which is not behaving as it
> does on WinXP, in terms of the Explorer shell. If I double-click on an
> associated file a new instance of the app is launched (on WinXP it would
> first attempt to re-use a runnning version); also, if I attempt to drag an
> associated file into the app's editor from Explorer, nothing happens (on
> WinXP it would open the file).
>
> The offending app is Delphi 7, which is listed with compatibility problems
> in Vista.
>
> Are there manual, Registry-based, fixes for these features?