Patrick:

The way I install applications is as follows:

1) Create a silent install package for the application and put it onto a secure share (accessible to admins only)
2) Create a batch file that contains the command line to install the application and a second line to delete the batch file
3) Copy the batch file to the client on which you want to install the application, e.g into the %WINDIR% directory
4) Schedule a task executing the copied batch file under an administrative account

The above is a very simplified version. However, for more information, take a look at the Kixtart Systems Management Server.
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There are two types of vessels, submarines and targets.