Help! How do you launch an application?

Hi!
I was wondering if anyone knew how to launch an application like ICQ. How do I detect if it is installed, and how do I launch it? thanks for any help you can give!

Hi,

I don't know how to see if it installed but I know you can SHELL it to start it ( look for the shell function in vb help )

To find the file first, use the FindFirstFile API.

Code:

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Declare Function FindFirstFile Lib "kernel32.dll" Alias "FindFirstFileA" (ByVal lpFileName As String, lpFindFileData As WIN32_FIND_DATA) As Long

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Thanks!
But is there another way? Finding a file that could be on any drive, anywhere will take a long time. Is there a way to retrieve it from the registry? (For example, the location of the ICQ executable?)

If you want to check the registry, I suggest that you use the RegOpenKeyEx API.

Code:

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Declare Function RegOpenKeyEx Lib "advapi32.dll" Alias "RegOpenKeyExA" (ByVal hKey As Long, ByVal lpSubKey As String, ByVal ulOptions As Long, ByVal samDesired As Long, phkResult As Long) As Long

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