If you create a default ini file and a so called configure script for each customer/task then you could fire up your configure script to set all or most variables in the ini file that are specific for that task or customer. The scripts used can then read stuff from the ini file using the ReadProfileString function and write back the result needed by an other script with the WriteProfileString function.
This way there is no need for sharing variables between two or more scripts and no scripting knowledge is necessary when setting up the task or changing things a bit one could just edit the ini file with a text editor.
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- Chuck Norris once sold ebay to ebay on ebay.