st: using different commands with same name (and un-updated ones)

[nicola.baldini2@unibo.it]

Is there any way to make Stata use one command instead of another with the same name (i.e. ways different from re-naming, removing, etc...)? 

E.g. make Stata using the original (old) version of -xtgee- ...

. which xtgee, all

C:\Programmi\Stata9\ado\updates\x\xtgee.ado
*! version 4.4.11  23oct2006

C:\Programmi\Stata9\ado\base\x\xtgee.ado
*! version 4.4.6  27jun2005

... or the user-written command

. which ivtobit, all

C:\Programmi\Stata9\ado\updates\i\ivtobit.ado
*! version 1.1.9  30nov2006

C:\Programmi\Stata9\ado\base\i\ivtobit.ado
*! version 1.1.5  03apr2005

c:\ado\plus\i\ivtobit.ado

Many thanks,
Nicola

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