This is an Open Source [MPL] XML-RPC client COM component for the Windows family (PocketPC/95/98/Me/NT4/2000/XP/2003), based on James Clark's excellent Expat XML Parser and PocketHTTP.

PocketXML-RPC includes the following features
Latest Version : PocketXML-RPC v1.2.1, released February 26, 2005

Easy to use

set f = CreateObject("pocketXMLRPC.Factory")
set p = f.Proxy("http://rpc.weblogs.com/RPC2", "weblogUpdates.")

set r = p.ping ("It's Just Code!", "http://www.pocketsoap.com/weblog/")
wscript.echo r.message

How To Use

PocketXML-RPC is easy to use, it just consists of two objects, the proxy factory and the struct object. The proxy factory is used to create new client objects for specific endpoints and configurations. e.g.
set f = CreateObject("pocketXMLRPC.Factory")
set proxy = f.Proxy("http://rpc.weblogs.com/RPC2", "weblogUpdates.")
This creates a new proxy object "proxy" that sends requests to the http://rpc.weblogs.com/RPC2 URL, with "weblogUpdates." prefixing all the methods. To make an actual call, just call the method on the proxy object with the relevant parameters, e.g.
p.ping "It's Just Code!", "http://www.pocketsoap.com/weblog/"
This will send an XML-RPC request to http://rpc.weblogs.com/RPC2 with a methodName of weblogUpdates.ping with two string parameters "It's Just Code!" and "http://www.pocketsoap.com/weblog/". The ping method actually returns a struct, which is automatically mapped to our struct object. To access values from the struct, just use the member names as property names, e.g.
set pingRes = p.ping("It's Just Code!", "http://www.pocketsoap.com/weblog/") 
' access the message member of the returned struct
msgbox pingRes.message
To send structs, we need to create an instance of the expando struct object first, then it works just as above, it automatically exapands to support whatever properties you set, e.g.
' assume we have a proxy object and we want to send a "sendMessage" method that 
' takes a single struct with 3 members message, timestamp and messageId
set myStruct = CreateObject("PocketXMLRPC.Struct")
myStruct.message = "Hello from PocketXML-RPC"
myStruct.timestamp = now
myStruct.messageId = 42
p.sendMessage myStruct
Arrays are also supported, they are mapped to/from arrays of variants, e.g.
myNumbers = array(10,20,30,40,42)
msgbox p.addNumbers (myNumbers)
Nested combinations are also supported, so you can have structs with structs, structs with arrays or arrays of structs, e.g.
set msg1 = CreateObject("PocketXMLRPC.Struct")
msg1.message = "Hello from PocketXML-RPC"
msg1.timestamp = now
msg1.messageId = 42
set msg2 = CreateObject("PocketXMLRPC.Struct")
msg2.message = "Goodbye from PocketXML-RPC"
msg2.timestamp = now
msg2.messageId = 43
msgs = array(msg1,msg2)
' assume we have a proxy object with a sendMessages method that takes an array of structs
p.sendMessages msgs
The proxy factory also supports a number of additional parameters that allow you can setup the HTTP parameters including server authentication, proxy server and proxy configuration settings.
object Proxy (   string endpointURL, 
                [string methodNamePrefix],
                [string serverUsername],
                [string serverPassword], 
                [string httpProxyServer],
                [long   httpProxyPort], 
                [string proxyUsername], 
                [string proxyPassword],
                [long   timeoutInSeconds] )
Note that the default timeout is 15 seconds. For example, to create a proxy object for the weblogs.com ping, that goes via a proxy server running at proxy.corp.com:8080, you would call
set f = CreateObject("pocketXMLRPC.Factory")
set p = f.Proxy("http://rpc.weblogs.com/RPC2", "weblogUpdates.",,,"proxy.corp.com", 8080)


Samples for various services are available on the samples page. Also available on the samples page is PocketBlogger a simple BloggerAPI client for PocketPC's.

Binaries & Source

Pre packaged Binaries and source are available under the Mozila Public License v1.1 (MPL)

Version Size (Kb) Platform Notes
Win32 Version v1.2.0 Packaged Install 238 supports Windows 95 OSR2 / 98 / Me / NT4 / 2000 / XP / 2003 Windows 95 requires DCOM95 Installing first
Windows 95/98 requires additional installs for SSL support, see this KB article for details.
PocketPC Version v1.2.1 Packaged Install 570 supports ARM, SH3 & MIPS running PocketPC and ARM devices running PocketPC 2002 and PocketPC 2003 requires ActiveSync 3.0 or greater to install, tested on Compaq iPaq H3650 (ARM) with a CF ethernet card
v1.2.1 Source Code 1920 Single source tree for both PocketPC & desktop versions Read the building the source notes first !
v1.2.1 Binaries for the PocketPC 2000 emulator 129 Built binaries suitable for installation into the pocketPC 2000 emulator. Run regsvrce on pocketHTTP.dll and PocketXMLRPC.dll
v1.2.1 Binaries for the PocketPC 2002 emulator 125 Built binaries suitable for installation into the pocketPC 2002 emulator. Run regsvrce on pocketHTTP.dll and PocketXMLRPC.dll

Release History

Version 1.2.1, February 26, 2005 Version 1.2, July 22, 2004 Version 1.1, April 26, 2003 Version 1.1 RC1, March 2, 2003 Version 1.0.1, December 22, 2002 Version 1.0.0, May 13, 2002