Usually, we (a Windows Mobile users) use RapiConfig.exe to execute an XML script (for WAP Provisioning) to modify some values in the phone. For some reasons, we probably need to execute it directly from the phone. To do that, we can use AEConfig.exe and modify some extension mapping in the registry, so we can just click the selected XML file to execute it.

I, personally, use xmlc extension to accomodate that.
So, I use these setting in the registry :

HKCR\.xmlc
Default = xmlcfile

HKCR\xmlcfile\Shell\Open\Command
Default = "\Program Files\AEConfig.exe" -ui -input="%1"

and of course, I copy the AEConfig.exe file in the \program files\ phone directory.

Afther that, we can create a WAP Provisioning file, for example, test.xmlc … and execute it directly (by clicking it) from the phone itself (no PC connection needed).