Mega Code Archive
How determine if a ANY app is installed
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Title: How determine if a ANY app is installed.
Question: How determine if a ANY app is installed.
Answer:
In some moment is necessary to know if some program is installed or not to accomplish some task and also is I presented me on one occasion the need of determining if Delphi was installed, used a similar routine to the one which I go to present.
However this was modified so that could determine the presence of any program always through its exe file (executable)Create a function that accept an entry parameter, that it will be the name of the EXE file for example: delphi32.exe, icq.exe, winword.exe... it is obvious that it must know if the name of the EXE file of the application that seeks:
Function IsInstalled (FileExe: String): Boolean;
var
reg : TRegistry;
temp: String
Begin
Result:=False;
Reg:= Tregistry.Create;
Try
Reg.RootKey:= HKEY_LOCAL_MACHINE;
If Reg.OpenKey ('\Software\Microsoft\Windows\CurrentVersion\App Paths\+FileExe,FALSE) Then
if Reg.ValueExists('') then
begin
temp := Reg.ReadString('Path');
Result := FileExists(temp+\+FileExe);
End;
Finally
Reg.Free;
End;
End;
I wrote this, practically of memory, if I committed some mistake please send me a e-mail to amend this article.
Regards.
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