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msigetproductinfo (msi)
 
.
Summary
The MsiCloseHandle function closes an open installation handle.

C# Signature:

[DllImport("msi.dll", CharSet=CharSet.Unicode)]
static extern Int32 MsiGetProductInfo(string product, string property, [Out] StringBuilder valueBuf, ref Int32 len);

VB Signature:

Declare Auto Function MsiGetProductInfo Lib "msi.dll" (ByVal product As String, ByVal [property] As String, <MarshalAs(UnmanagedType.VBByRefStr)> ByRef valueBuf As String, ByRef len As Long) As Int32

User-Defined Types:

None.

Alternative Managed API:

MSI interop library

http://sourceforge.net/project/showfiles.php?group_id=40188&package_id=110212

Notes:

None.

Tips & Tricks:

Please add some!

Sample Code:

Int32 len = 512;
System.Text.StringBuilder builder = new System.Text.StringBuilder(len);
MsiGetProductInfo("{4B3334CE-06D9-4446-BBC5-EB4C9D75BFF6}", "InstallSource", builder , ref len);

VB Sample:

result = New String(" ", 255)
len = 255
MsiGetProductInfo("{4B3334CE-06D9-4446-BBC5-EB4C9D75BFF6}", "InstallSource", result, len)
result = left$(result,len)

Documentation

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