我可以将ASP.NET Web服务升级到WCF并仍然从ASP.NET 1.1调用它吗？

I need to make a change to an ASP.NET web service written a couple years ago on 2.0. I call this web service from an old 1.1 web site. I need to make some changes to the web service, so am thinking, should I rewrite this into a WCF service and if so, will I still be able to use it from my 1.1 web site?I need to make a change to an ASP.NET web servi