[wpkg-users] check type "logical"

[simon.begin at institutsmq.qc.ca]

I'm testing a check type="execute" to install software if the computer is 
member of an MS AD group.

This check works well alone::
         <check type="execute" 
path='\\sc18\Sources\WPKG\Packages\tools\groupmember.cmd "G WPKG tstpkg"' 
condition="exitcodeequalto" value="0" />
It installs the package if the computer is member of the AD Group "G WPKG 
tstpkg"

However it will Allways install the package as the condition will allways 
be true. 
So I need to add a second condition so it will check if the package is not 
already installed. This is where I bug::

<check type="logical" condition="and">
         <check type="execute" 
path='\\sc18\Sources\WPKG\Packages\tools\groupmember.cmd "G WPKG tstpkg"' 
condition="exitcodeequalto" value="0" />
         <check type="file" condition="exists" path="c:\tstpkg\tstpkg.dat" 
/>
</check>

Both check works well alone.

If I put "AND", it works, but it will still allways install. (the 1st 
check is allways true)

If I put "OR" it will install to anyone, regardless of the group member.

I need some way of doing 
IF check#1 then
     IF check #2 then
          install package
     endif
endif

Any way of doing this ?
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