How to change a Logical Port URL-Destination/Endpoint at Runtime

Question

Hi,
i am looking for a way to change the endpoint for a webservice-call without redeploying my application. (I am using a standalone-proxy).
In the SAP-Help from NetWeaver 2004s I found the following hint:
http://help.sap.com/saphelp_nw04/helpdata/en/9f/c487d701c7214db8ca7a741ba3c9d0/frameset.htm
Configuring Logical Ports:
Logical ports (LPs) contain the configuration of the client-side SOAP runtime, such as the access URL or security settings. These are required if Web service calls are executed using proxies.
The Web service port is part of the WSDL description. This defines a URL where the service is to be called. As a rule, this URL is generated directly into the proxy object. However, this can cause problems whenever the proxy is transported into a system landscape (for example, from the test system into the productive system). In this case, the proxy would still attempt to call the Web service on the test server although the proxy should point to the productive system. The proxy could be re-generated or the coding could be changed manually. Due to the risk of errors with this method, the configuration data in the SAP Web Service Framework is separated from the implementation. After transport or re-deployment of the proxy, the URL and other important parameters can be adapted using a simple editor. 
The LPs provided correspond to the Web service configurations created for the Web service.
My Question:
Where can I change the URL of the corresponding logical port at runtime?
I don't want to redeploy my application !!!
I want to change the endpoint-destination at runtime!!!
In the Visual Administrator I can see the webservice in the "Web Services Container Service Administration". I also can see the different ports from the WebService-Configuration I made.
http://help.sap.com/saphelp_nw04/helpdata/en/9f/c487d701c7214db8ca7a741ba3c9d0/frameset.htm
But it is not possible to change the "target adresses"!
Can anybody help me finding a solution concerning my question?
Regards
Steffen

Answer 1

You can include below method in your code and call it.
private void UpdateConfig(string key, string value, string fileName)
var cFile = ConfigurationManager.OpenExeConfiguration(fileName);
cFile.AppSettings.Settings[key].Value = value;
cFile.Save();
Here fileName is the full path + application name (eg: c:\project\WinApp.exe)
Adnan Amin MCT, SharePoint Architect | If you find this post useful kindly please mark it as an answer :)