Build Task Help

I'm trying to execute a custom task from msbuildto branch a particular label of code to a different folder (development to staging) in source control, check that in and then perform the build. The dll I created to perform the branch works fine when called from my local machine but not when called from an msbuild task. Is there a way to manipulate source control using a task in msbuild?

I created a task assembly, which performs the branch operation, to call from msbuild....the code is below:

using System;

using Microsoft.Build.Framework;

using Microsoft.Build.Utilities;

using Microsoft.TeamFoundation.Build.Client;

using Microsoft.TeamFoundation.Build;

using Microsoft.TeamFoundation.VersionControl.Client;

namespace BranchModule

{

publicclassBranch :Task

publicoverridebool Execute()

{

String tfsName ="http://trafvsts:8080";

Microsoft.TeamFoundation.Client.TeamFoundationServer tfs = Microsoft.TeamFoundation.Client.TeamFoundationServerFactory.GetServer(tfsName);

VersionControlServer vcs = (VersionControlServer)tfs.GetService(typeof(VersionControlServer));

// Create a workspace.

Workspace oWorkspace = vcs.GetWorkspace("Local Machine","vetric");

// Delete all of the items in the destination folder.

CheckInChanges(oWorkspace,"Delete Previous Build");

//Create the Version Label Spec from label name

Microsoft.TeamFoundation.VersionControl.Client.LabelVersionSpec lvs =newLabelVersionSpec(mLabelName, mScope);

// Branch all of the items from source project.

int iCount = oWorkspace.PendBranch(mSourcePath, mDestPath, lvs,LockLevel.None,true);

if (iCount <= 0)

{returnfalse; }

else

CheckInChanges(oWorkspace,"Check-in Branch");

returntrue;

}

}

privatestring mSourcePath, mDestPath;

privatestring mLabelName, mScope;

publicstring SourcePath

{

get {return mSourcePath; }

set { mSourcePath =value; }

}

publicstring DestinationPath

{

get {return mDestPath; }

set { mDestPath =value; }

}

publicstring LabelName

{

get {return mLabelName; }

set { mLabelName =value; }

}

publicstring Scope

{

get {return mScope; }

set { mScope =value; }

}

}

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I'm calling this code from the TFSBuild.proj with the code below:

[10311 byte] By [Vetric] at [2008-2-15]