You can have as many installs as you like. The trick is NOT to re-install. Simply make a COPY of the entire IL-2 folder.
What you want to do is keep VANILLA version of IL-2 and never actually use it (except to make copies of it). This way, if you manage your copies correctly, you will never have to actually re-install IL-2 again. Just use a fresh copy and go from there.
The only drawback here is HD space. If you have plenty of space (an inexpensive external HD is a great thing to have), you should always have several copies of IL-2 in various forms (versions) as a back-up.
Aviar
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