The IRequest::Read method reads the HTTP Request to the VARIANT.
HRESULT Read(
VARIANT *varText, // VARIANT to receive the HTTP input
);
If VBScript is your primary scripting language, VARIANT cannot be a string literal that contains more than 1022 characters. This is because VBScript limits static strings to 1022 bytes. You can, however, specify VARIANT as the name of a variable that contains greater than 1022 bytes.