diff --git a/src/apps/installer/CopyEngine.cpp b/src/apps/installer/CopyEngine.cpp
index 43cde9a7e6..fb297f0df9 100644
--- a/src/apps/installer/CopyEngine.cpp
+++ b/src/apps/installer/CopyEngine.cpp
@@ -22,19 +22,22 @@
 #include "InstallerWindow.h"
 	// TODO: For PACKAGES_DIRECTORY and VAR_DIRECTORY, not so nice...
 #include "SemaphoreLocker.h"
+#include "ProgressReporter.h"
 
 
 using std::nothrow;
 
 
-CopyEngine::CopyEngine(const BMessenger& messenger, BMessage* message)
+CopyEngine::CopyEngine(ProgressReporter* reporter)
 	:
 	fBufferQueue(),
 	fWriterThread(-1),
 	fQuitting(false),
 
 	fBytesRead(0),
+	fLastBytesRead(0),
 	fItemsCopied(0),
+	fLastItemsCopied(0),
 	fTimeRead(0),
 
 	fBytesWritten(0),
@@ -46,8 +49,7 @@ CopyEngine::CopyEngine(const BMessenger& messenger, BMessage* message)
 	fCurrentTargetFolder(NULL),
 	fCurrentItem(NULL),
 
-	fMessenger(messenger),
-	fMessage(message)
+	fProgressReporter(reporter)
 {
 	fWriterThread = spawn_thread(_WriteThreadEntry, "buffer writer",
 		B_NORMAL_PRIORITY, this);
@@ -73,16 +75,19 @@ CopyEngine::~CopyEngine()
 		int32 exitValue;
 		wait_for_thread(fWriterThread, &exitValue);
 	}
-
-	delete fMessage;
 }
 
 
 void
 CopyEngine::ResetTargets()
 {
+	// TODO: One could subtract the bytes/items which were added to the
+	// ProgressReporter before resetting them...
+
 	fBytesRead = 0;
+	fLastBytesRead = 0;
 	fItemsCopied = 0;
+	fLastItemsCopied = 0;
 	fTimeRead = 0;
 
 	fBytesWritten = 0;
@@ -93,12 +98,6 @@ CopyEngine::ResetTargets()
 
 	fCurrentTargetFolder = NULL;
 	fCurrentItem = NULL;
-
-	if (fMessage) {
-		BMessage message(*fMessage);
-		message.AddString("status", "Collecting copy information.");
-		fMessenger.SendMessage(&message);
-	}
 }
 
 
@@ -106,7 +105,10 @@ status_t
 CopyEngine::CollectTargets(const char* source, sem_id cancelSemaphore)
 {
 	int32 level = 0;
-	return _CollectCopyInfo(source, level, cancelSemaphore);
+	status_t ret = _CollectCopyInfo(source, level, cancelSemaphore);
+	if (ret == B_OK && fProgressReporter != NULL)
+		fProgressReporter->AddItems(fItemsToCopy, fBytesToCopy);
+	return ret;
 }
 
 
@@ -114,14 +116,6 @@ status_t
 CopyEngine::CopyFolder(const char* source, const char* destination,
 	sem_id cancelSemaphore)
 {
-	printf("%lld bytes to read in %lld files\n", fBytesToCopy, fItemsToCopy);
-
-	if (fMessage) {
-		BMessage message(*fMessage);
-		message.AddString("status", "Performing installation.");
-		fMessenger.SendMessage(&message);
-	}
-
 	int32 level = 0;
 	return _CopyFolder(source, destination, level, cancelSemaphore);
 }
@@ -475,16 +469,23 @@ CopyEngine::_RemoveFolder(BEntry& entry)
 void
 CopyEngine::_UpdateProgress()
 {
-	if (fMessage != NULL) {
-		BMessage message(*fMessage);
-		float progress = 100.0 * fBytesRead / fBytesToCopy;
-		message.AddFloat("progress", progress);
-		message.AddInt32("current", fItemsCopied);
-		message.AddInt32("maximum", fItemsToCopy);
-		message.AddString("item", fCurrentItem);
-		message.AddString("folder", fCurrentTargetFolder);
-		fMessenger.SendMessage(&message);
+	if (fProgressReporter == NULL)
+		return;
+
+	uint64 items = 0;
+	if (fLastItemsCopied < fItemsCopied) {
+		items = fItemsCopied - fLastItemsCopied;
+		fLastItemsCopied = fItemsCopied;
 	}
+
+	off_t bytes = 0;
+	if (fLastBytesRead < fBytesRead) {
+		bytes = fBytesRead - fLastBytesRead;
+		fLastBytesRead = fBytesRead;
+	}
+
+	fProgressReporter->ItemsWritten(items, bytes, fCurrentItem,
+		fCurrentTargetFolder);
 }
 
 
diff --git a/src/apps/installer/CopyEngine.h b/src/apps/installer/CopyEngine.h
index bda85ad7a4..1ad6552250 100644
--- a/src/apps/installer/CopyEngine.h
+++ b/src/apps/installer/CopyEngine.h
@@ -15,14 +15,12 @@
 #include "BlockingQueue.h"
 
 class BFile;
-class BMessage;
-class BMessenger;
+class ProgressReporter;
 
 
 class CopyEngine {
 public:
-								CopyEngine(const BMessenger& messenger,
-									BMessage* message);
+								CopyEngine(ProgressReporter* reporter);
 	virtual						~CopyEngine();
 
 			void				ResetTargets();
@@ -93,7 +91,9 @@ private:
 	volatile bool				fQuitting;
 
 			off_t				fBytesRead;
+			uint64				fLastBytesRead;
 			uint64				fItemsCopied;
+			uint64				fLastItemsCopied;
 			bigtime_t			fTimeRead;
 
 			off_t				fBytesWritten;
@@ -105,8 +105,7 @@ private:
 			const char*			fCurrentTargetFolder;
 			const char*			fCurrentItem;
 
-			BMessenger			fMessenger;
-			BMessage*			fMessage;
+			ProgressReporter*	fProgressReporter;
 };
 
 
diff --git a/src/apps/installer/Jamfile b/src/apps/installer/Jamfile
index 4dde40289e..bb6431a736 100644
--- a/src/apps/installer/Jamfile
+++ b/src/apps/installer/Jamfile
@@ -9,6 +9,7 @@ Application Installer :
 	InstallerWindow.cpp
 	PackageViews.cpp
 	PartitionMenuItem.cpp
+	ProgressReporter.cpp
 	UnzipEngine.cpp
 	WorkerThread.cpp
 	: be tracker translation libshared.a $(TARGET_LIBSTDC++)
diff --git a/src/apps/installer/ProgressReporter.cpp b/src/apps/installer/ProgressReporter.cpp
index 9bb538177c..5b451246a6 100644
--- a/src/apps/installer/ProgressReporter.cpp
+++ b/src/apps/installer/ProgressReporter.cpp
@@ -5,28 +5,19 @@
 
 #include "ProgressReporter.h"
 
-#include <new>
-
-#include <math.h>
 #include <stdio.h>
-#include <string.h>
-
-
-using std::nothrow;
 
 
 ProgressReporter::ProgressReporter(const BMessenger& messenger,
 		BMessage* message)
 	:
-	fBytesRead(0),
-	fItemsCopied(0),
-	fTimeRead(0),
+	fStartTime(0),
 
+	fBytesToWrite(0),
 	fBytesWritten(0),
-	fTimeWritten(0),
 
-	fBytesToCopy(0),
-	fItemsToCopy(0),
+	fItemsToWrite(0),
+	fItemsWritten(0),
 
 	fMessenger(messenger),
 	fMessage(message)
@@ -43,15 +34,11 @@ ProgressReporter::~ProgressReporter()
 void
 ProgressReporter::Reset()
 {
-	fBytesRead = 0;
-	fItemsCopied = 0;
-	fTimeRead = 0;
-
+	fBytesToWrite = 0;
 	fBytesWritten = 0;
-	fTimeWritten = 0;
 
-	fBytesToCopy = 0;
-	fItemsToCopy = 0;
+	fItemsToWrite = 0;
+	fItemsWritten = 0;
 
 	if (fMessage) {
 		BMessage message(*fMessage);
@@ -64,22 +51,35 @@ ProgressReporter::Reset()
 void
 ProgressReporter::AddItems(uint64 count, off_t bytes)
 {
-	// TODO ...
+	fBytesToWrite += bytes;
+	fItemsToWrite += count;
 }
 
 
 void
 ProgressReporter::StartTimer()
 {
-	// TODO ...
+	fStartTime = system_time();
+
+	printf("%lld bytes to write in %lld files\n", fBytesToWrite,
+		fItemsToWrite);
+
+	if (fMessage) {
+		BMessage message(*fMessage);
+		message.AddString("status", "Performing installation.");
+		fMessenger.SendMessage(&message);
+	}
 }
 
 
 void
-ProgressReporter::ItemsCopied(uint64 items, off_t bytes, const char* itemName,
-	const char* targetFolder)
+ProgressReporter::ItemsWritten(uint64 items, off_t bytes,
+	const char* itemName, const char* targetFolder)
 {
-	// TODO ...
+	fItemsWritten += items;
+	fBytesWritten += bytes;
+
+	_UpdateProgress(itemName, targetFolder);
 }
 
 
@@ -87,14 +87,17 @@ void
 ProgressReporter::_UpdateProgress(const char* itemName,
 	const char* targetFolder)
 {
-	if (fMessage != NULL) {
-		BMessage message(*fMessage);
-		float progress = 100.0 * fBytesRead / fBytesToCopy;
-		message.AddFloat("progress", progress);
-		message.AddInt32("current", fItemsCopied);
-		message.AddInt32("maximum", fItemsToCopy);
-		message.AddString("item", itemName);
-		message.AddString("folder", targetFolder);
-		fMessenger.SendMessage(&message);
-	}
+	if (fMessage == NULL)
+		return;
+
+	// TODO: Could add time to finish calculation here...
+
+	BMessage message(*fMessage);
+	float progress = 100.0 * fBytesWritten / fBytesToWrite;
+	message.AddFloat("progress", progress);
+	message.AddInt32("current", fItemsWritten);
+	message.AddInt32("maximum", fItemsToWrite);
+	message.AddString("item", itemName);
+	message.AddString("folder", targetFolder);
+	fMessenger.SendMessage(&message);
 }
diff --git a/src/apps/installer/ProgressReporter.h b/src/apps/installer/ProgressReporter.h
index 2238244338..6d20d47925 100644
--- a/src/apps/installer/ProgressReporter.h
+++ b/src/apps/installer/ProgressReporter.h
@@ -21,24 +21,24 @@ public:
 
 			void				StartTimer();
 
-			void				ItemsCopied(uint64 items, off_t bytes,
+			void				ItemsWritten(uint64 items, off_t bytes,
 									const char* itemName,
 									const char* targetFolder);
 
+			// TODO: Perhaps move cancelling here as well...
+
 private:
 			void				_UpdateProgress(const char* itemName,
 									const char* targetFolder);
 
 private:
-			off_t				fBytesRead;
-			uint64				fItemsCopied;
-			bigtime_t			fTimeRead;
+			bigtime_t			fStartTime;
 
+			off_t				fBytesToWrite;
 			off_t				fBytesWritten;
-			bigtime_t			fTimeWritten;
 
-			off_t				fBytesToCopy;
-			uint64				fItemsToCopy;
+			uint64				fItemsToWrite;
+			uint64				fItemsWritten;
 
 			BMessenger			fMessenger;
 			BMessage*			fMessage;
diff --git a/src/apps/installer/UnzipEngine.cpp b/src/apps/installer/UnzipEngine.cpp
index 4efef35e2a..89245cc42f 100644
--- a/src/apps/installer/UnzipEngine.cpp
+++ b/src/apps/installer/UnzipEngine.cpp
@@ -21,12 +21,13 @@
 
 #include "CommandPipe.h"
 #include "SemaphoreLocker.h"
+#include "ProgressReporter.h"
 
 
 using std::nothrow;
 
 
-UnzipEngine::UnzipEngine(const BMessenger& messenger, BMessage* message,
+UnzipEngine::UnzipEngine(ProgressReporter* reporter,
 		sem_id cancelSemaphore)
 	:
 	fPackage(""),
@@ -34,11 +35,12 @@ UnzipEngine::UnzipEngine(const BMessenger& messenger, BMessage* message,
 
 	fBytesToUncompress(0),
 	fBytesUncompressed(0),
+	fLastBytesUncompressed(0),
 	fItemsToUncompress(0),
 	fItemsUncompressed(0),
+	fLastItemsUncompressed(0),
 
-	fMessenger(messenger),
-	fMessage(message),
+	fProgressReporter(reporter),
 	fCancelSemaphore(cancelSemaphore)
 {
 }
@@ -46,7 +48,6 @@ UnzipEngine::UnzipEngine(const BMessenger& messenger, BMessage* message,
 
 UnzipEngine::~UnzipEngine()
 {
-	delete fMessage;
 }
 
 
@@ -60,8 +61,10 @@ UnzipEngine::SetTo(const char* pathToPackage, const char* destinationFolder)
 
 	fBytesToUncompress = 0;
 	fBytesUncompressed = 0;
+	fLastBytesUncompressed = 0;
 	fItemsToUncompress = 0;
 	fItemsUncompressed = 0;
+	fLastItemsUncompressed = 0;
 
 	BPrivate::BCommandPipe commandPipe;
 	status_t ret = commandPipe.AddArg("unzip");
@@ -95,12 +98,6 @@ UnzipEngine::UnzipPackage()
 	if (fItemsToUncompress == 0)
 		return B_NO_INIT;
 
-	if (fMessage) {
-		BMessage message(*fMessage);
-		message.AddString("status", "Extracting package.");
-		fMessenger.SendMessage(&message);
-	}
-
 	BPrivate::BCommandPipe commandPipe;
 	status_t ret = commandPipe.AddArg("unzip");
 	if (ret == B_OK)
@@ -155,19 +152,6 @@ UnzipEngine::ReadLine(const BString& line)
 status_t
 UnzipEngine::_ReadLineListing(const BString& line)
 {
-//	static const char* kListingFormat = "%llu files, %llu bytes uncompressed, "
-//		"%llu bytes compressed: %f%%";
-//
-//	uint64 bytesCompressed;
-//	float compresssionRatio;
-//	if (sscanf(line.String(), kListingFormat, &fItemsToUncompress,
-//		&fBytesToUncompress, &bytesCompressed, &compresssionRatio) != 4) {
-//		fBytesToUncompress = 0;
-//		fItemsToUncompress = 0;
-//		fprintf(stderr, "error reading command output: %s\n", line.String());
-//		return B_ERROR;
-//	}
-
 	static const char* kListingFormat = "%llu  %s %s   %s\n";
 
 	const char* string = line.String();
@@ -197,7 +181,7 @@ UnzipEngine::_ReadLineListing(const BString& line)
 			if (destination.Append(itemPath.String()) == B_OK) {
 				BEntry test(destination.Path());
 				if (test.Exists() && test.IsDirectory()) {
-					printf("ignoring %s\n", itemPath.String());
+//					printf("ignoring %s\n", itemPath.String());
 					itemCount = 0;
 				}
 			}
@@ -205,8 +189,8 @@ UnzipEngine::_ReadLineListing(const BString& line)
 
 		fItemsToUncompress += itemCount;
 
-		printf("item %s with %llu bytes to %s\n", itemName.String(),
-			bytes, itemPath.String());
+//		printf("item %s with %llu bytes to %s\n", itemName.String(),
+//			bytes, itemPath.String());
 
 		fEntrySizeMap.Put(itemName.String(), bytes);
 	} else {
@@ -243,8 +227,8 @@ UnzipEngine::_ReadLineExtract(const BString& line)
 			fBytesUncompressed += bytes;
 		}
 
-		printf("%llu extracted %s to %s (%llu)\n", fItemsUncompressed,
-			itemName.String(), itemPath.String(), bytes);
+//		printf("%llu extracted %s to %s (%llu)\n", fItemsUncompressed,
+//			itemName.String(), itemPath.String(), bytes);
 
 		_UpdateProgress(itemName.String(), itemPath.String());
 	} else {
@@ -258,14 +242,20 @@ UnzipEngine::_ReadLineExtract(const BString& line)
 void
 UnzipEngine::_UpdateProgress(const char* item, const char* targetFolder)
 {
-	if (fMessage != NULL) {
-		BMessage message(*fMessage);
-		float progress = 100.0 * fBytesUncompressed / fBytesToUncompress;
-		message.AddFloat("progress", progress);
-		message.AddInt32("current", fItemsUncompressed);
-		message.AddInt32("maximum", fItemsToUncompress);
-		message.AddString("item", item);
-		message.AddString("folder", targetFolder);
-		fMessenger.SendMessage(&message);
+	if (fProgressReporter == NULL)
+		return;
+
+	uint64 items = 0;
+	if (fLastItemsUncompressed < fItemsUncompressed) {
+		items = fItemsUncompressed - fLastItemsUncompressed;
+		fLastItemsUncompressed = fItemsUncompressed;
 	}
+
+	off_t bytes = 0;
+	if (fLastBytesUncompressed < fBytesUncompressed) {
+		bytes = fBytesUncompressed - fLastBytesUncompressed;
+		fLastBytesUncompressed = fBytesUncompressed;
+	}
+
+	fProgressReporter->ItemsWritten(items, bytes, item, targetFolder);
 }
diff --git a/src/apps/installer/UnzipEngine.h b/src/apps/installer/UnzipEngine.h
index 26162e1845..36eafdcc1a 100644
--- a/src/apps/installer/UnzipEngine.h
+++ b/src/apps/installer/UnzipEngine.h
@@ -15,14 +15,12 @@
 #include "HashMap.h"
 #include "HashString.h"
 
-class BMessage;
-class BMessenger;
+class ProgressReporter;
 
 
 class UnzipEngine : private BCommandPipe::LineReader {
 public:
-								UnzipEngine(const BMessenger& messenger,
-									BMessage* message,
+								UnzipEngine(ProgressReporter* reporter,
 									sem_id cancelSemaphore = -1);
 	virtual						~UnzipEngine();
 
@@ -59,11 +57,12 @@ private:
 
 			off_t				fBytesToUncompress;
 			off_t				fBytesUncompressed;
+			off_t				fLastBytesUncompressed;
 			uint64				fItemsToUncompress;
 			uint64				fItemsUncompressed;
+			uint64				fLastItemsUncompressed;
 
-			BMessenger			fMessenger;
-			BMessage*			fMessage;
+			ProgressReporter*	fProgressReporter;
 			sem_id				fCancelSemaphore;
 };
 
diff --git a/src/apps/installer/WorkerThread.cpp b/src/apps/installer/WorkerThread.cpp
index 688387fd24..dd85124f69 100644
--- a/src/apps/installer/WorkerThread.cpp
+++ b/src/apps/installer/WorkerThread.cpp
@@ -27,6 +27,7 @@
 #include "InstallerWindow.h"
 #include "PackageViews.h"
 #include "PartitionMenuItem.h"
+#include "ProgressReporter.h"
 #include "UnzipEngine.h"
 
 
@@ -251,7 +252,9 @@ WorkerThread::_PerformInstall(BMenu* srcMenu, BMenu* targetMenu)
 	entry_ref testRef;
 
 	BMessenger messenger(fWindow);
-	CopyEngine engine(messenger, new BMessage(MSG_STATUS_MESSAGE));
+	ProgressReporter reporter(messenger, new BMessage(MSG_STATUS_MESSAGE));
+	CopyEngine engine(&reporter);
+	BList unzipEngines;
 
 	PartitionMenuItem* targetItem = (PartitionMenuItem*)targetMenu->FindMarked();
 	PartitionMenuItem* srcItem = (PartitionMenuItem*)srcMenu->FindMarked();
@@ -397,6 +400,7 @@ WorkerThread::_PerformInstall(BMenu* srcMenu, BMenu* targetMenu)
 		goto error;
 	}
 
+	// Begin actuall installation
 
 	_LaunchInitScript(targetDirectory);
 
@@ -419,6 +423,14 @@ WorkerThread::_PerformInstall(BMenu* srcMenu, BMenu* targetMenu)
 		}
 	}
 
+	// collect information about all zip packages
+	err = _ProcessZipPackages(srcDirectory.Path(), targetDirectory.Path(),
+		&reporter, unzipEngines);
+	if (err != B_OK)
+		goto error;
+
+	reporter.StartTimer();
+
 	// copy source volume
 	err = engine.CopyFolder(srcDirectory.Path(), targetDirectory.Path(),
 		fCancelSemaphore);
@@ -439,37 +451,17 @@ WorkerThread::_PerformInstall(BMenu* srcMenu, BMenu* targetMenu)
 		}
 	}
 
-#if 0
-	// extract zip packages
-	// TODO: Put those in the optional packages list view
-	// TODO: Implement mechanism to handle dependencies between these
-	// packages. (Selecting one will auto-select others.)
-	{
-		BPath pkgRootDir(srcDirectory.Path(), PACKAGES_DIRECTORY);
-		BDirectory directory(pkgRootDir.Path());
-		BEntry entry;
-		while (directory.GetNextEntry(&entry) == B_OK) {
-			char name[B_FILE_NAME_LENGTH];
-			if (entry.GetName(name) != B_OK)
-				continue;
-			int nameLength = strlen(name);
-			if (nameLength <= 0)
-				continue;
-			char* nameExtension = name + nameLength - 4;
-printf("inspecting %s (%s)\n", name, nameExtension);
-			if (strcasecmp(nameExtension, ".zip") != 0)
-				continue;
-			printf("found .zip package: %s\n", name);
-
-			UnzipEngine unzipEngine(messenger, new BMessage(MSG_STATUS_MESSAGE),
-				fCancelSemaphore);
-			BPath path;
-			entry.GetPath(&path);
-			unzipEngine.SetTo(path.Path(), targetDirectory.Path());
-			unzipEngine.UnzipPackage();
-		}
+	// Extract all zip packages. If an error occured, delete the rest of
+	// the engines, but stop extracting.
+	for (int32 i = 0; i < unzipEngines.CountItems(); i++) {
+		UnzipEngine* engine = reinterpret_cast<UnzipEngine*>(
+			unzipEngines.ItemAtFast(i));
+		if (err == B_OK)
+			err = engine->UnzipPackage();
+		delete engine;
 	}
-#endif
+	if (err != B_OK)
+		goto error;
 
 	_LaunchFinishScript(targetDirectory);
 
@@ -487,6 +479,48 @@ error:
 }
 
 
+status_t
+WorkerThread::_ProcessZipPackages(const char* sourcePath,
+	const char* targetPath, ProgressReporter* reporter, BList& unzipEngines)
+{
+	// TODO: Put those in the optional packages list view
+	// TODO: Implement mechanism to handle dependencies between these
+	// packages. (Selecting one will auto-select others.)
+	BPath pkgRootDir(sourcePath, PACKAGES_DIRECTORY);
+	BDirectory directory(pkgRootDir.Path());
+	BEntry entry;
+	while (directory.GetNextEntry(&entry) == B_OK) {
+		char name[B_FILE_NAME_LENGTH];
+		if (entry.GetName(name) != B_OK)
+			continue;
+		int nameLength = strlen(name);
+		if (nameLength <= 0)
+			continue;
+		char* nameExtension = name + nameLength - 4;
+		if (strcasecmp(nameExtension, ".zip") != 0)
+			continue;
+		printf("found .zip package: %s\n", name);
+
+		UnzipEngine* unzipEngine = new(std::nothrow) UnzipEngine(reporter,
+			fCancelSemaphore);
+		if (unzipEngine == NULL || !unzipEngines.AddItem(unzipEngine)) {
+			delete unzipEngine;
+			return B_NO_MEMORY;
+		}
+		BPath path;
+		entry.GetPath(&path);
+		status_t ret = unzipEngine->SetTo(path.Path(), targetPath);
+		if (ret != B_OK)
+			return ret;
+
+		reporter->AddItems(unzipEngine->ItemsToUncompress(),
+			unzipEngine->BytesToUncompress());
+	}
+
+	return B_OK;
+}
+
+
 void
 WorkerThread::_SetStatusMessage(const char *status)
 {
diff --git a/src/apps/installer/WorkerThread.h b/src/apps/installer/WorkerThread.h
index 25f58ed69e..3fc7e1cef3 100644
--- a/src/apps/installer/WorkerThread.h
+++ b/src/apps/installer/WorkerThread.h
@@ -16,6 +16,7 @@
 class BList;
 class BMenu;
 class InstallerWindow;
+class ProgressReporter;
 
 class WorkerThread : public BLooper {
 public:
@@ -41,7 +42,12 @@ private:
 			void				_LaunchInitScript(BPath& path);
 			void				_LaunchFinishScript(BPath& path);
 
-			void				_PerformInstall(BMenu* srcMenu, BMenu* dstMenu);
+			void				_PerformInstall(BMenu* srcMenu,
+									BMenu* dstMenu);
+			status_t			_ProcessZipPackages(const char* sourcePath,
+									const char* targetPath,
+									ProgressReporter* reporter,
+									BList& unzipEngines);
 
 			void				_SetStatusMessage(const char* status);