Nsis Read Installed添加更多插件dll到已安装文件夹的路径

Question

我在HKCU中存储了安装路径

WriteRegStr ${REG_ROOT} "${UNINSTALL_PATH}"  "Path" "$INSTDIR"

我想从注册表中读取此路径

ReadRegStr $0  ${REG_ROOT} "${UNINSTALL_PATH}"  "Path" 

但它返回空字符串而不是c：\ ProgramFile .. 有没有办法返回这条路径