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Made the starting of Explorer.exe during uninstall much more robust. [#2
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| !ifndef UN_START_EXPLORER_NSH | ||
| !define UN_START_EXPLORER_NSH | ||
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| !include Kill.nsh | ||
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| ; I can't just do something like 'ExecShell "open" "explorer.exe"' because | ||
| ; that would make the Add/Remove Programs dialog freeze until explorer was | ||
| ; killed. It has this check that makes it wait for every subprocess of the | ||
| ; installer to quit before you can interact with it again. So the way I make it | ||
| ; work now is by using window's built in feature to restart the shell whenever | ||
| ; it's unexpectedly killed. | ||
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| Function un.StartExplorer | ||
| ; This whole trick wont work if there are any explorer windows open | ||
| Call un.KillExplorer | ||
| Sleep 500 | ||
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| ; Make sure the "restart shell" feature is turned on. (Back up the old | ||
| ; value first) | ||
| ReadRegDWORD $0 HKLM "SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" "AutoRestartShell" | ||
| WriteRegDWORD HKLM "SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" "AutoRestartShell" 1 | ||
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| ; Make LS the shell | ||
| FileOpen $1 "$INSTDIR\step.rc" w | ||
| FileWrite $1 "LSSetAsShell" | ||
| FileClose $1 | ||
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| ; Start Litestep as a "real" shell (LSSetAsShell forces LS to call SetShellWindow) | ||
| Exec "$INSTDIR\litestep.exe" | ||
| Sleep 2000 ; Give LS two seconds to start | ||
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| FindProcDLL::FindProc "litestep.exe" | ||
| Sleep 50 | ||
| ${If} $R0 != 1 | ||
| ; LS still isn't running, wait another second | ||
| Sleep 1000 | ||
| ${EndIf} | ||
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| ; Kill Litestep. This should make explorer start | ||
| Push $INSTDIR | ||
| Call un.KillLS | ||
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| ; Give Windows a couple of seconds to realize its shell just died. | ||
| Sleep 2000 | ||
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| FindProcDLL::FindProc "explorer.exe" | ||
| Sleep 50 | ||
| ${If} $R0 != 1 | ||
| ; Explorer still isn't running, wait another second | ||
| Sleep 1000 | ||
| ${EndIf} | ||
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| ; Change back the value of "AutoRestartShell" | ||
| WriteRegDWORD HKLM "SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" "AutoRestartShell" $0 | ||
| FunctionEnd | ||
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| Function un.StartExplorerByKillingExplorer | ||
| ; Make sure the "restart shell" feature is turned on. (Back up the old | ||
| ; value first) | ||
| ReadRegDWORD $0 HKLM "SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" "AutoRestartShell" | ||
| WriteRegDWORD HKLM "SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" "AutoRestartShell" 1 | ||
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| Exec "explorer.exe" | ||
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| ; Wait for explorer.exe to start | ||
| StrCpy $R1 0 | ||
| ${While} $R1 < 10 | ||
| FindProcDLL::FindProc "explorer.exe" | ||
| ${If} $R0 == 1 | ||
| StrCpy $R1 10 | ||
| ${Else} | ||
| Sleep 1000 | ||
| IntOp $R1 $R1 + 1 | ||
| ${EndIf} | ||
| ${EndWhile} | ||
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| KillProcDLL::KillProc "explorer.exe" | ||
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| Sleep 2000 ; Give explorer some time to die | ||
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| ; Wait for explorer to start again. | ||
| ; Now when it starts it will not be owned by the uninstaller's process | ||
| ; and we will not freeze the add/remove programs dialog. | ||
| StrCpy $R1 0 | ||
| ${While} $R1 < 8 | ||
| FindProcDLL::FindProc "explorer.exe" | ||
| ${If} $R0 == 1 | ||
| StrCpy $R1 10 | ||
| ${Else} | ||
| Sleep 1000 | ||
| IntOp $R1 $R1 + 1 | ||
| ${EndIf} | ||
| ${EndWhile} | ||
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| ; Change back the value of "AutoRestartShell" | ||
| WriteRegDWORD HKLM "SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" "AutoRestartShell" $0 | ||
| FunctionEnd | ||
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| !endif |