我想知道如何确定目标计算机中是否安装了特定的Windows Update软件包,例如名称为 KB2919355 的Windows Update软件包。
是否存在内置功能来检查?如果没有,那么确定它所需的代码是什么?也许搞乱注册表,或者可能是最干净和/或最安全的方式?
伪码:
[Setup]
...
[Files]
Source: {app}\*; DestDir: {app}; Check: IsPackageInstalled('KB2919355')
[Code]
function IsPackageInstalled(packageName): Boolean;
begin
...
Result := ...;
end;
答案 0 :(得分:6)
function IsKBInstalled(KB: string): Boolean;
var
WbemLocator: Variant;
WbemServices: Variant;
WQLQuery: string;
WbemObjectSet: Variant;
begin
WbemLocator := CreateOleObject('WbemScripting.SWbemLocator');
WbemServices := WbemLocator.ConnectServer('', 'root\CIMV2');
WQLQuery := 'select * from Win32_QuickFixEngineering where HotFixID = ''' + KB + '''';
WbemObjectSet := WbemServices.ExecQuery(WQLQuery);
Result := (not VarIsNull(WbemObjectSet)) and (WbemObjectSet.Count > 0);
end;
使用类似:
if IsKBInstalled('KB2919355') then
begin
Log('KB2919355 is installed');
end
else
begin
Log('KB2919355 is not installed');
end;
现金:
答案 1 :(得分:0)
WbemScripting.SWbemLocator
对我不起作用。所以我采用了不同的方法并连接到WUA(Windows Update Agent):
function IsUpdateInstalled(KB: String): Boolean;
var
UpdateSession: Variant;
UpdateSearcher: Variant;
SearchResult: Variant;
I: Integer;
begin
UpdateSession := CreateOleObject('Microsoft.Update.Session');
UpdateSearcher := UpdateSession.CreateUpdateSearcher()
SearchResult := UpdateSearcher.Search('IsInstalled=1')
for I := 0 to SearchResult.Updates.Count - 1 do
begin
if SearchResult.Updates.Item(I).KBArticleIDs.Item(0) = KB then
begin
Result := true;
Exit;
end;
end;
Result := false;
end;
调用如下:
if IsUpdateInstalled('3020369') then
...