Check if .dll exists (non-path specific)

[cjqp]

I'm wondering if its possible to detect if a DLL is registered, or in a directory where it would be found (System, System32, Windows, etc.)

cjqp

[kleinma]

Originally posted by cjqp
I'm wondering if its possible to detect if a DLL is registered, or in a directory where it would be found (System, System32, Windows, etc.)

cjqp

you could try to late bind an object to the DLL and catch the error like

Public Function IsDllRegistered()
On Error Goto EH:
    Dim MyObject as Object
    Set MyObject = CreateObject("MyDll.MyClass")
    Set MyObject = Nothing
    IsDllRegistered = True
    Exit Function
EH:
    IsDllRegistered = False
End Function

of course depending on what exatcly you are looking to do, this may or may not suit your needs

[cjqp]

What I'm trying to do is have microsoft's TTS engine in my program, but not require the user to install it. I want to have it automatically disabled if the engine isn't installed.

cjqp

[kleinma]

how come? TTS is freely distributable, you can include it in your app

[cjqp]

Yeah, but this is more of a school assignment, this is a quick-impress-the-teacher type thing. I don't want to force its install.

cjqp

[kleinma]

Originally posted by cjqp
Yeah, but this is more of a school assignment, this is a quick-impress-the-teacher type thing. I don't want to force its install.

cjqp

well I am not sure what object you would create for TTS I dont have it installed here at work... but you could probably use my method that I posted above to check

substitute
CreateObject("MyDll.MyClass")
for whatever the object and class are for TTS
CreateObject("MSTTS.Engine") 'whatever the TTS object really is