ActiveX desktop API upward compatible ?

[Dierk Droth]

Hi,

TradeMagic is a .NET application. .NET applications access the eSignal functionality on using the IESignal interop wrapper. This wrapper then accesses the eSignal COM winsig.exe.

Here is my question:
Will the GUIDs and the vtables (the "interface") of the eSignal COM winsig.exe change on updating to a new eSignal version or will they stay the same ? Changes in the interface would imply building new versions of my 3rd party app. Thus, I hope they won't change

Any comment is appreciated.

[sthornington]

The GUIDs won't change, and the interface will only grow downwards -- we make an effort to ensure that previous integrations won't break on new releases, but I'd definately recommend checking out each release during the beta phase to make sure.

Cheers,

Simon.

[Dierk Droth]

Great.

Thanks for letting me know