[PATCH] msi: Fix installing from administrative image with compressed source files.

[Marvin]

Hi,

While running your changed tests, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?

Full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=73168

Your paranoid android.


=== w1064v1809_ar (32 bit report) ===

msi:
install: Timeout

=== w1064v1809_ar (testbot log) ===

The task timed out

=== w1064v1809_he (32 bit report) ===

msi:
install: Timeout

=== w1064v1809_he (testbot log) ===

The task timed out

=== w1064v1809_ja (32 bit report) ===

msi:
install: Timeout

=== w1064v1809_ja (testbot log) ===

The task timed out

=== w1064v1809_zh_CN (32 bit report) ===

msi:
install: Timeout