Inno Setup - Register components as an administrator - excel

Question

Based on the excellent Excel add-in installer (Daniel's XL Toolbox), I have built a setup file that among other things needs to register some ActiveX's
[Files]
; The include file makes adds all .XLA and .XLAM files contained in the
; SOURCEDIR to the project.
Source: "c:\source\path\MSCOMCTL.OCX"; \
DestDir: "\users\public\EzPasteFiles"; Flags: regserver
Source: "c:\source\path\DAS_AX_Knob.dll"; \
DestDir: "\users\public\EzPasteFiles"; Flags: regserver
Source: "c:\source\path\GIF89.DLL"; \
DestDir: "\users\public\EzPasteFiles"; Flags: regserver
I need the addin to install, then before starting to register the files a check is done about administrator rights and if the user has none, a message is displayed asking for entering the admin password so that registration can take place. I am aware that it can be done at the beginning of the setup, but then the addin will not be activated, if it is a standard user account. The addin needs registered components, a standard user can't install it properly.
I am looking for something like this to fire before the registration starts:
MyProgChecked := not(IsAdminLoggedOn or IsPowerUserLoggedOn);
if MyProgChecked = True then
begin
MsgBox(
'Kindly notice:' #13#13
'It seems as you are not looged as an administrator' #13#13
'Please abort and reinstall EzPaste AS an administrator' #13#13
'(To install As an Adminstrator, just save the exe setup anywhere then Right Click on it to get to this feature or ask your IT administrator for proper directives)',
mbConfirmation, MB_OK);
{ Popup message asking for Pwd }
ExitProcess(0);
end;
I am naturally open for any other approach
I'll be glad also to understand how a domain user (Windows server) without admin rights should proceed to install the addin.

Answer 1

You can execute regsvr32.exe "as administrator", this way:
[Files]
Source: "MyDll.dll"; DestDir: "{app}"; AfterInstall: RegMyDll
[Code]
procedure RegMyDll;
var
Path: string;
RegSvr: string;
Params: string;
Registered: Boolean;
ErrorCode: Integer;
begin
Path := ExpandConstant(CurrentFilename);
RegSvr := 'regsvr32.exe';
Params := Format('/s "%s"', [Path]);
Log(Format('Registering %s using "%s" %s', [Path, RegSvr, Params]));
Registered :=
ShellExec('runas', RegSvr, Params, '', SW_HIDE, ewWaitUntilTerminated, ErrorCode);
if Registered and (ErrorCode = 0) then
begin
Log(Format('Registered %s', [Path]));
end
else
begin
MsgBox(Format('Registering %s failed with code %d', [Path, ErrorCode]), mbError, MB_OK);
end;
end;
Alternative implementation is to create subinstaller for the registration only that will require Administrator privileges.
For a similar example, see Inno Setup - Access unprivileged account folders from installer that requires privileges.
Or use an opposite approach. Require administrator privileges using
[Setup]
PrivilegesRequired=admin
(which is default)
But deploy files to the original user folder.
See my answer to Inno Setup always installs into admin's AppData directory.