Need .net variable for WinHTTP Services, version 5.1'.WinHttpRequest

Hi experts,
We are using this automation variable in our codeunit Microsoft WinHTTP Services, version 5.1’.WinHttpRequest. Now we want to call these functions in web client . But automation variable doesn’t work in web client. Can any body have solution for this type of issue
Is it possible to call these function with automation variable in Web Client? Is there any solution for this


use ‘Microsoft WinHTTP Services, version 5.1’.WinHttpRequest

best regards