How do i run a command line exe from within visual basic passing parameters to it?

Okay, what i'm doing here is working on a program that needs to use ffmpeg to convert a wma file to mp3.
what i'm needing to do though is call something like this from within my VB application.

C:\ffmpeg.rev12665>ffmpeg -i test.wma -vn -f wav - | lame --resample 32 -
b 40 -B 40 --cbr -f --priority 4 -m s - test.mp3

i simply need VB to be able to launch that externally basically.

i really need to convert the wma samplerate to different samples like 22,050 so flash will stream it properly.
i would purchase something to get this done and i was looking at this:

only problem with that is that it doesn't allow you to change the sample rate for mp3...only wav.

can anyone help me with this or know of an activex object i can purchase that will do this?
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
if all you want to do is run it externally, use the shell command:


replace the C:\Users\ with the path
linuxroxAuthor Commented:
Hey, I tried the following and this doesn't work:

ShellExecute Me.hwnd, vbNullString, "C:\ffmpeg.rev12665\ffmpeg.exe", "-i C:\ffmpeg.rev12665\localbreak2.wma -vn -f wav - | C:\ffmpeg.rev12665\lame --resample 22.05 -b 40 -B 40 --cbr -f --priority 4 -m s - C:\ffmpeg.rev12665\localbreak2.mp3", "C:\ffmpeg.rev12665\", SW_SHOWNORMAL

but when i paste this into a command prompt it does work:

C:\ffmpeg.rev12665\ffmpeg.exe -i C:\ffmpeg.rev12665\localbreak2.wma -vn -f wav - | C:\ffmpeg.rev12665\lame --resample 22.05 -b 40 -B 40 --cbr -f --priority 4 -m s - C:\ffmpeg.rev12665\localbreak2.mp3

any ideas?
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Web Components

From novice to tech pro — start learning today.