104 lines
2.6 KiB
Perl
104 lines
2.6 KiB
Perl
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use Win32::Registry;
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my ($type, $value, $uc, $urt);
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my $version = "";
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my $ms = "";
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###
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### It appears that if you install recent URT builds and then uninstall,
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### the entire .NETFramework key gets blown away. Thus, we'll create it if
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### so necessary.
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###
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if (!$::HKEY_LOCAL_MACHINE->Open('SOFTWARE\Microsoft\.NETFramework', $urt)) {
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###
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### This cannot fail (right?).
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###
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if (!$::HKEY_LOCAL_MACHINE->Open('SOFTWARE\Microsoft', $ms)) {
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die "Couldn't open HKLM\Software\Microsoft key: $!\n";
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}
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$ms->Create('.NETFramework', $value);
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$::HKEY_LOCAL_MACHINE->Open('SOFTWARE\Microsoft\.NETFramework', $urt);
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}
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if ($urt->Open('policy\v1.0', $policy)) {
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###
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### This machine has some version of the URT installed.
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###
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$policy->GetValues(\%values);
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foreach (sort(keys(%values))) {
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if (/^\d+$/) {
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$version = $_;
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if ($_ == $ARGV[1]) {
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last;
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}
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}
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}
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###
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### If no "backup" of this key exists, make one.
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###
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if (!$::HKEY_LOCAL_MACHINE->Open('SOFTWARE\Microsoft\.NETFramework.BAK', $uc)) {
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$::HKEY_LOCAL_MACHINE->Open('SOFTWARE\Microsoft', $ms) unless ($ms);
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$ms->Create('.NETFramework.BAK', $target);
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&BackupKey($urt, $target);
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}
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if ($urt->QueryValueEx("InstallRoot", $type, $value)) {
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if ($value eq $ARGV[0]) {
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if ($version != $ARGV[1]) {
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###
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### The InstallRoot matches ours but the version is different, nuke the
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### GAC of things we might have stored there.
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system("$ENV{'URTINSTALL'}\\gacclean.cmd");
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exit(0);
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}
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#
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# InstallRoot matches as does version - we're done.
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#
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exit(2);
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} else {
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if ($version == $ARGV[1]) {
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#
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# InstallRoot differs, but version matches - assume all is well for now.
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#
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exit (2);
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}
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}
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}
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}
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# No record of install or the install path and version doesn't match.
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exit(0);
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###
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### Makes a deep copy of a particular reg key.
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###
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sub BackupKey($$)
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{
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my $srckey = shift;
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my $targetkey = shift;
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my ($subskey, $subtkey, @keys, %values);
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$srckey->GetKeys(\@keys);
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foreach (@keys) {
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$srckey->Open($_, $subskey);
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$targetkey->Create($_, $subtkey);
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BackupKey($subskey, $subtkey);
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}
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$srckey->GetValues(\%values);
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foreach (keys(%values)) {
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$targetkey->SetValueEx($_, 0, $values{$_}->[1], $values{$_}->[2]);
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}
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}
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__END__
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