To handle run time error

I assume that you are using VBscript. 

I am not familiar with VBscript. Normally I would suggest using a try/catch statement, but http://stackoverflow.com/questions/4999364/try-catch-end-try-in-vbscript says that VB script does not have this feature.

Alternatively maybe you could look into event handlers: http://support.smartbear.com/viewarticle/56222/

 Hi ,
I started with VB-scripting but switch to JScripts, one reason is possibility of try-catch
error handling. But late found that try-catch are misleading when it comes to fixing errors.

For me error handling in other ways are better than try-catch.
For example most my error are due to unable to find objects at right time.
for those I manage waiting, checking-exists, re-routing and bit more designing scripts way-ahead of writing.
and ofcourse thorough testing of test.