Talk:Add uninstall information to Add/Remove Programs

I wanted to submit this, but didn't want to edit the article since I'm new here.

Use ${GetSize} to fill in the EstimatedSize value. This assumes the simple case where there is one main directory with most of your files (including subdirs).

Just the relevant bits of foo.nsi :

!define ARP "Software\Microsoft\Windows\CurrentVersion\Uninstall\${APPNAME}"
!include "FileFunc.nsh"

Section "Install"

; [...copy all files here, before GetSize...]

${GetSize} "$INSTDIR" "/S=0K" $0 $1 $2
IntFmt $0 "0x%08X" $0
WriteRegDWORD HKLM "${ARP}" "EstimatedSize" "$0"

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