Handler "DataFlex 20.1 Web Services 64bit" has a bad module "IsapiModule" in its module list
From DataFlex Wiki
If you use DataFlex 20.x to create webservices and not webapps that have a fancy new interface using the WebApp framework then you might bump into the following problem.
- WebApps such as "WebOrderMobile" work fine - Your WebServices using only the cWebAppBasic framework do not work.
You're getting the following error when you try to browse to a .wso file.
