[prestest] Self-update fails on Win7

[Uwe Siart]

Hi all,

This is what happenend today:

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C:\>tlmgr update --self
tlmgr.pl: package repository ftp://ftp.cstug.cz/pub/local/tlpretest (not verified: gpg unavailable)
tlmgr.pl: Preparing TeX Live infrastructure update...
DO NOT CLOSE THIS WINDOW!
TeX Live infrastructure update in progress ...
Detailed command logging to "C:\Programme1\texlive\2020\temp\update-self.log"
failed self update: tlperl.win32 (54074 -> 54166)
Rolling back to previous version ...
self restore: tlperl.win32 (54074)
Infrastructure update failed. Previous version has been restored.
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>From update-self.log:

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TL>tlpkg\tlperl\bin\perl.exe .\texmf-dist\scripts\texlive\tlmgr.pl _include_tlpobj tlpkg\tlpobj\tlperl.win32.tlpobj
OLE.c: loadable library and perl binaries are mismatched (got handshake key 01F5D844, needed 00000000)

TL>if errorlevel 1 goto :rollback
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-- 
Uwe