Old 13th April 2018, 21:36   #1
Join Date: Jul 2015
Posts: 62
Enumeration weird behaviour

Hi everyone!

I am seeing this really weird behavior when using an enumeration. Maybe a second pair of eyes will see what wrong I am doing. So I am basically looping through a registry and if I find the key I am looking for I delete it. When I run the below script to just show me what keys match(say there are 2), it works perfectly fine. The message box shows up twice with the correct key that I am looking for.
Now when I uncomment the line where it actually deletes the key, it only deletes one of the keys and exits out. I have tried all sorts of debugging with message boxes, but I am not able to figure out why it would not delete both the keys.

EnumRegKey $1 HKLM SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall $0
StrCmp $1 "" done
${StrContains} $R1 "MyString" "$1"
StrCmp $R1 "" notfound
StrCpy $regKeyDelete $1
MessageBox MB_OK 'Found string $regKeyDelete'
;DeleteRegKey HKLM "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\$regKeyDelete"

IntOp $0 $0 + 1
goto loop
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Old 13th April 2018, 22:39   #2
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Join Date: Jun 2002
Location: ${NSISDIR}
Posts: 5,296
Reset the index $0 to 0 every time you delete a key. The order of enumerated keys is not documented in Windows.

IntOp $PostCount $PostCount + 1
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Old 13th April 2018, 23:11   #3
Join Date: Jul 2015
Posts: 62
Awesome!! thanks Anders!!
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