题
我使用NSIS为程序创建一个安装
,什么是如果已经安装了这个程序来检测的最佳方式?此外,因为我是从的autorun.inf运行安装程序,我可以马上退出安装程序,如果它找到一个已安装的副本?有没有更好的方式来做到这一点?
解决方案
这个怎么样。 我有这个在旧NSIS脚本周围铺设。
; Check to see if already installed
ReadRegStr $R0 HKLM "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\<YOUR-APP-NAME>" "UninstallString"
IfFileExists $R0 +1 NotInstalled
messagebox::show MB_DEFBUTTON4|MB_TOPMOST "<YOUR-APP-NAME>" \
"0,103" \
"<YOUR-APP-NAME> is already installed." \
"Launch Uninstall" "Cancel"
Pop $R1
StrCmp $R1 2 Quit +1
Exec $R0
Quit:
Quit
NotInstalled:
其他提示
我已经使用一个稍微复杂的测试,其还检查所安装的软件的版本:
!define PRODUCT_VERSION "1.2.0"
!include "WordFunc.nsh"
!insertmacro VersionCompare
Var UNINSTALL_OLD_VERSION
...
Section "Core System" CoreSystem
StrCmp $UNINSTALL_OLD_VERSION "" core.files
ExecWait '$UNINSTALL_OLD_VERSION'
core.files:
...
WriteRegStr HKLM "Software\${PRODUCT_REG_KEY}" "" $INSTDIR
WriteRegStr HKLM "Software\${PRODUCT_REG_KEY}" "Version" "${PRODUCT_VERSION}"
...
SectionEnd
...
Function .onInit
;Check earlier installation
ClearErrors
ReadRegStr $0 HKLM "Software\${PRODUCT_REG_KEY}" "Version"
IfErrors init.uninst ; older versions might not have "Version" string set
${VersionCompare} $0 ${PRODUCT_VERSION} $1
IntCmp $1 2 init.uninst
MessageBox MB_YESNO|MB_ICONQUESTION "${PRODUCT_NAME} version $0 seems to be already installed on your system.$\nWould you like to proceed with the installation of version ${PRODUCT_VERSION}?" \
IDYES init.uninst
Quit
init.uninst:
ClearErrors
ReadRegStr $0 HKLM "Software\${PRODUCT_REG_KEY}" ""
IfErrors init.done
StrCpy $UNINSTALL_OLD_VERSION '"$0\uninstall.exe" /S _?=$0'
init.done:
FunctionEnd
当然,你必须填写的细节,这只是给你一个粗略的框架。
创建卸载程序创建注册表中的商品名称填写之后
!define PRODUCT_UNINST_ROOT_KEY "HKLM"
!define PRODUCT_UNINST_KEY "Software\Microsoft\Windows\CurrentVersion\Uninstall\${COMPANY_NAME} ${PRODUCT_NAME}"
Section -Post
SetShellVarContext current
WriteUninstaller "${UNINST_PATH}\uninst.exe"
WriteRegStr ${PRODUCT_UNINST_ROOT_KEY} "${PRODUCT_UNINST_KEY}" "DisplayName" "$(^Name)"
要查看是否安装了该产品做
Function IsProductInstalled
ClearErrors
ReadRegStr $2 ${PRODUCT_UNINST_ROOT_KEY} "${PRODUCT_UNINST_KEY}" "DisplayName"
StrCmp $2 "" exit
在你卸载,你应该做的事情。
Section Uninstall
DeleteRegKey ${PRODUCT_UNINST_ROOT_KEY} "${PRODUCT_UNINST_KEY}"
这通常是由具有NSIS插入一个注册表项,为您的产品,当它安装完成。它是那么容易的方式检测如果注册表项存在,如果是,吊环
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