[WiX-users] Rollback not rolling all back

[Reggie B. <ry...@co...>]

I have a Wix authored install that is very simple.  It installs a .NET
assembly into the GAC and also into a folder and then attempts to run
installutil  on the assembly in the folder.  THe installutil run failed due
to some directly problem (I think).  The installer gave me the stock
'program failed to complete' error message but indicated that no changes had
been made to my system.  This was not true.  The assembly was not removed
from the GAC.

I'm just wondering if I did something wrong in my installer to cause this or
is the claim that MSI prevents half installs not true.