Could it be that...
code:
Shell '\\server\share\msiexec.exe /q ALLUSERS=2 /m MSILA3H3 /i "Adobe Reader 6.0.msi'
is missing the second double quote?
code:
Shell '\\server\share\msiexec.exe /q ALLUSERS=2 /m MSILA3H3 /i "Adobe Reader 6.0.msi"'
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(... better days ahead)
