Force uninstall->Reboot->New Install

Lucky75 · 15th December 2009, 22:37

Hi all,

I have an installer where if I am updating versions, I need to uninstall the old stuff, reboot, and then reinstall the new software, all from the same executable.

Is there an easy way to do this and have it resume?

My other option is to set a registry flag, copy the installer to some temporary directory, and then have it determine that the registry flag was set so I need to skip sections, but I would prefer to not have to do that manually.

Thanks for the help!

redxii · 15th December 2009, 23:40

You'd use this key to launch the installer after a reboot:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce

WriteRegStr HKLM "SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce" "MyInstaller" "$EXEPATH\$EXEFILE"

Lucky75 · 16th December 2009, 03:29

Yeah, that's not the problem. Is there some way to set where I want to resume in the installer script, or to resume where I left off, or call a function or something? Without just setting it as value in some key in the registry?

jpderuiter · 16th December 2009, 07:52

You can add a parameter to the path in this registry entry (like '"$EXEPATH\$EXEFILE" /RESUME=YES'),
and then check on startup of the installer if this parameter is set with GetParameters and GetOptions, and skip the code you want.

Lucky75 · 16th December 2009, 15:52

Thanks. How would I actually use GetOptions to get the value of the resume parameter in a variable? The help file is rather vague.

jpderuiter · 16th December 2009, 16:59

code:
${GetParameters} $R0 ;copy all parameters to $R0

${GetOptions} "$R0" "/RESUME=" $R1 ;copy RESUME value from $R0 to $R1

IfErrors 0 +2

MessageBox MB_OK "RESUME value not set" +2

MessageBox MB_OK "RESUME value set: $R1"

15th December 2009, 22:37	#1
Lucky75 Junior Member Join Date: Jul 2007 Posts: 15	Force uninstall->Reboot->New Install Hi all, I have an installer where if I am updating versions, I need to uninstall the old stuff, reboot, and then reinstall the new software, all from the same executable. Is there an easy way to do this and have it resume? My other option is to set a registry flag, copy the installer to some temporary directory, and then have it determine that the registry flag was set so I need to skip sections, but I would prefer to not have to do that manually. Thanks for the help!

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15th December 2009, 23:40	#2
redxii Senior Member Join Date: Nov 2005 Posts: 113	You'd use this key to launch the installer after a reboot: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce WriteRegStr HKLM "SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce" "MyInstaller" "$EXEPATH\$EXEFILE"

16th December 2009, 03:29	#3
Lucky75 Junior Member Join Date: Jul 2007 Posts: 15	Yeah, that's not the problem. Is there some way to set where I want to resume in the installer script, or to resume where I left off, or call a function or something? Without just setting it as value in some key in the registry?

16th December 2009, 07:52	#4
jpderuiter Major Dude Join Date: Feb 2007 Posts: 546	You can add a parameter to the path in this registry entry (like '"$EXEPATH\$EXEFILE" /RESUME=YES'), and then check on startup of the installer if this parameter is set with GetParameters and GetOptions, and skip the code you want.

16th December 2009, 15:52	#5
Lucky75 Junior Member Join Date: Jul 2007 Posts: 15	Thanks. How would I actually use GetOptions to get the value of the resume parameter in a variable? The help file is rather vague.