The string you passed as an argument to the Execute statement cannot be parsed as a statement. The Execute statement can be used to dynamically execute VBScript code. For example, consider the following VBScript code.
Execute "msgbox 1" 'This works because msgbox is a statement. Execute "5*4" 'This fails because 5*4 cannot be interpreted as a statement.
The Expected statement error is also generated during the compilation of any script code that expects a statement, not just by Execute and Eval. For example, the following code causes this error in Internet Explorer,
<html> <script language=vbscript> 5*4 </script> </html>
Notice that there are two distinct and unrelated Execute statements in VBScript,
the Execute statement that compiles and executes statements on the fly,
the Regular Expression Execute method.
To correct this error
Confirm that the string being passed to Execute is a statement.
If the string you want to evaluate is an expression, use Eval.