Open URL in Internet Explorer using COM automation

Author: Anders (talk, contrib)

This code tries to open a url in internet explorer.

!define VARIANT_TRUE -1 ;((VARIANT_BOOL)-1)
!define VT_ERROR 10
!define DISP_E_PARAMNOTFOUND 0x80020004
!define CLSCTX_LOCAL_SERVER 0x4
!define CLSID_InternetExplorer {0002DF01-0000-0000-C000-000000000046}
!define IID_IWebBrowserApp {0002DF05-0000-0000-C000-000000000046}
!define IWebBrowserApp.Navigate ->11(i,i,i,i,i)i
!define IWebBrowserApp.put_Visible ->41(&i2)i 
 
Function InternetExplorerAuto_OpenURL
exch $2
push $0
push $1
System::Call "ole32::CoCreateInstance( \
	g '${CLSID_InternetExplorer}', i 0, \
	i ${CLSCTX_LOCAL_SERVER}, \
	g '${IID_IWebBrowserApp}', *i 0 r0)"
${If} $0 <> 0
	System::Call "$0${IWebBrowserApp.put_Visible} (${VARIANT_TRUE}).r1"
	${If} $1 = 0
		System::Call "*(i ${VT_ERROR},i ${DISP_E_PARAMNOTFOUND},i)i.r1" ;VARIANT
		System::Call 'Oleaut32::SysAllocString(w "$2")i.r2'
		System::Call "$0${IWebBrowserApp.Navigate} ($2,$1,$1,$1,$1)"
		System::Free $1
		System::Call 'Oleaut32::SysFreeString(ir2)'
	${EndIf}
	System::Call "$0->2()"
${EndIf}
pop $1
pop $0
pop $2
FunctionEnd
 
 
section 
push "http://example.com"
call InternetExplorerAuto_OpenURL
sectionend