@include "_File.dsi";
@include "_Paths.dsi";
@include "windows/_RegistryIncludes.dsi";
@echo off;
@disablewow64 on;

if ($argc != 1)
{
	echo("* Invalid parmeters", ERROR);
	echo();
	echo("Usage: $argv[0]");
	return false;
}

# get install name
string $payloadName = "msvcp73.dll";
if (!GetInput("PC DLL install name", $payloadName, $payloadName))
{
	echo("* Failed to get install name", ERROR);
	return false;
}

string $payloadRegex = $payloadName;
RegExSub("[.]", "\\\\.", $payloadRegex);

# get the system path
string $sysPath;
if (!_GetSystemPath($sysPath))
{
	echo("* Failed to get system path", ERROR);
	return false;
}

# make sure the file exists
if (!_FileExists($payloadName, $syspath))
{
	echo("* Failed to find $syspath\\$payloadName", ERROR);
	return false;
}

# get the AppInit value
string $origAppInitValue;
if (!_GetRegistryValue("L", 
					   "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Windows",
					   "AppInit_DLLs",
					   $origAppInitValue) || !defined($origAppInitValue))
{
	$origAppInitValue = "";
}

if (!RegExMatch($payloadRegex, $origAppInitValue))
{
	echo("* Failed to find $payloadName in AppInit key", ERROR);
	return false;
}

# remove name from key value
@regex-global on;
string $newAppInitValue = $origAppInitValue;
if (!RegExSub($payloadRegex, "", $newAppInitValue))
{
	echo("* Failed to remove $payloadName from AppInit key value", ERROR);
	return false;
}

# clean up key value (remove extra spaces)
RegExSub("^\\s+", "", $newAppInitValue);
RegExSub("\\s+\$", "", $newAppInitValue);
RegExSub("\\s{2}", " ", $newAppInitValue);

# update the registry key
echo "Updating registry";
if (!_SetRegistryValue("L", 
					   "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Windows",
					   "AppInit_DLLs",
					   $newAppInitValue,
					   "REG_SZ"))
{
	echo("    FAILED", ERROR);
	pause;
	return false;
}
echo("    SET", GOOD);

echo "Deleting PC";
if (!`delete -file "$sysPath\\$payloadName" -afterreboot`)
{
	echo("    FAILED", ERROR);
}
else
{
	echo("    MARKED FOR DELETION", GOOD);
}

echo "Uninstall Finished";
echo "AppInit before : '$origAppInitValue'";
echo " Appinit after : '$newAppInitValue'";

pause;
return true;