Does each user have his own credentials to access \\10.10.202.1 or do you use one general UserID and Password eventually known by any user?
I would think you first do a Use, per example
 Code:
Use \\10.10.202.1 /USER:"NameOffSystem\GeneralUser" /Password:"C-cret2Enter!System"

or catch name and password by user input and feed it to Use
if the Use is successfull (@ERROR = 0), you can open a browser
 Code:
Break On
;First something with the Use command
;Catch @ERROR
If @ERROR = 0
	Run '%COMSPEC% /C START \\10.10.202.1\share'
EndIf