REG_EXPAND_SZ means that the value contains (or may contain) environment variables that are supposed to be expanded. Usually you have things like:

%SYSTEMROOT%\System32\Drivers

[download]

... and have to hope that the application knows how to handle REG_EXPAND_SZ.

In reply to Re^5: Win7, ASSOCiation , and @ARGV by Corion
in thread Win7, ASSOCiation , and @ARGV by ww

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