API: Add new option to allow disabling of section realignment.

Core: Add support for new disable section realignment option.
Unpacker: v20.x86 - Add support for new disable section realignment option.
Unpacker: v21.x86 - Add support for new disable section realignment option.
Unpacker: v30.x86 - Add support for new disable section realignment option.
Unpacker: v30.x64 - Add support for new disable section realignment option.
Unpacker: v31.x86 - Add support for new disable section realignment option.
Unpacker: v31.x64 - Add support for new disable section realignment option.

Steamless.API/Model/SteamlessOptions.cs

@@ -37,6 +37,7 @@ namespace Steamless.API.Model
             this.DumpPayloadToDisk = false;
             this.DumpSteamDrmpToDisk = false;
             this.UseExperimentalFeatures = false;
+            this.DontRealignSections = false;
         }
 
         /// <summary>
@@ -83,5 +84,14 @@ namespace Steamless.API.Model
             get => this.Get<bool>("UseExperimentalFeatures");
             set => this.Set("UseExperimentalFeatures", value);
         }
+
+        /// <summary>
+        /// Gets or sets the don't realign sections option value.
+        /// </summary>
+        public bool DontRealignSections
+        {
+            get => this.Get<bool>("DontRealignSections");
+            set => this.Set("DontRealignSections", value);
+        }
     }
 }

Steamless.API/PE32/Pe32File.cs

@@ -304,17 +304,23 @@ namespace Steamless.API.PE32
         /// <summary>
         /// Rebuilds the sections by aligning them as needed. Updates the Nt headers to
         /// correct the new SizeOfImage after alignment is completed.
+        /// 
+        /// <param name="realign"></param>
         /// </summary>
-        public void RebuildSections()
+        public void RebuildSections(bool realign = true)
         {
             for (var x = 0; x < this.Sections.Count; x++)
             {
                 // Obtain the current section and realign the data..
                 var section = this.Sections[x];
-                section.VirtualAddress = this.GetAlignment(section.VirtualAddress, this.NtHeaders.OptionalHeader.SectionAlignment);
+
-                section.VirtualSize = this.GetAlignment(section.VirtualSize, this.NtHeaders.OptionalHeader.SectionAlignment);
+                if (realign)
-                section.PointerToRawData = this.GetAlignment(section.PointerToRawData, this.NtHeaders.OptionalHeader.FileAlignment);
+                {
-                section.SizeOfRawData = this.GetAlignment(section.SizeOfRawData, this.NtHeaders.OptionalHeader.FileAlignment);
+                    section.VirtualAddress = this.GetAlignment(section.VirtualAddress, this.NtHeaders.OptionalHeader.SectionAlignment);
+                    section.VirtualSize = this.GetAlignment(section.VirtualSize, this.NtHeaders.OptionalHeader.SectionAlignment);
+                    section.PointerToRawData = this.GetAlignment(section.PointerToRawData, this.NtHeaders.OptionalHeader.FileAlignment);
+                    section.SizeOfRawData = this.GetAlignment(section.SizeOfRawData, this.NtHeaders.OptionalHeader.FileAlignment);
+                }
 
                 // Store the sections updates..
                 this.Sections[x] = section;

Steamless.API/PE64/Pe64File.cs

@@ -140,7 +140,7 @@ namespace Steamless.API.PE64
                 // Read the Tls directory..
                 this.TlsDirectory = Pe64Helpers.GetStructure<NativeApi64.ImageTlsDirectory64>(this.FileData, (int)addr);
 
-                if (this.TlsDirectory.AddressOfCallBacks == 0) 
+                if (this.TlsDirectory.AddressOfCallBacks == 0)
                     return true;
 
                 // Read the Tls callbacks..
@@ -307,17 +307,23 @@ namespace Steamless.API.PE64
         /// <summary>
         /// Rebuilds the sections by aligning them as needed. Updates the Nt headers to
         /// correct the new SizeOfImage after alignment is completed.
+        /// 
+        /// <param name="realign"></param>
         /// </summary>
-        public void RebuildSections()
+        public void RebuildSections(bool realign = true)
         {
             for (var x = 0; x < this.Sections.Count; x++)
             {
                 // Obtain the current section and realign the data..
                 var section = this.Sections[x];
-                section.VirtualAddress = (uint)this.GetAlignment(section.VirtualAddress, this.NtHeaders.OptionalHeader.SectionAlignment);
+
-                section.VirtualSize = (uint)this.GetAlignment(section.VirtualSize, this.NtHeaders.OptionalHeader.SectionAlignment);
+                if (realign)
-                section.PointerToRawData = (uint)this.GetAlignment(section.PointerToRawData, this.NtHeaders.OptionalHeader.FileAlignment);
+                {
-                section.SizeOfRawData = (uint)this.GetAlignment(section.SizeOfRawData, this.NtHeaders.OptionalHeader.FileAlignment);
+                    section.VirtualAddress = (uint)this.GetAlignment(section.VirtualAddress, this.NtHeaders.OptionalHeader.SectionAlignment);
+                    section.VirtualSize = (uint)this.GetAlignment(section.VirtualSize, this.NtHeaders.OptionalHeader.SectionAlignment);
+                    section.PointerToRawData = (uint)this.GetAlignment(section.PointerToRawData, this.NtHeaders.OptionalHeader.FileAlignment);
+                    section.SizeOfRawData = (uint)this.GetAlignment(section.SizeOfRawData, this.NtHeaders.OptionalHeader.FileAlignment);
+                }
 
                 // Store the sections updates..
                 this.Sections[x] = section;

Steamless.Unpacker.Variant20.x86/Main.cs

@@ -286,7 +286,7 @@ namespace Steamless.Unpacker.Variant20.x86
             try
             {
                 // Rebuild the file sections..
-                this.File.RebuildSections();
+                this.File.RebuildSections(this.Options.DontRealignSections == false);
             }
             catch
             {

Steamless.Unpacker.Variant21.x86/Main.cs

@@ -433,7 +433,7 @@ namespace Steamless.Unpacker.Variant21.x86
             try
             {
                 // Rebuild the file sections..
-                this.File.RebuildSections();
+                this.File.RebuildSections(this.Options.DontRealignSections == false);
 
                 // Open the unpacked file for writing..
                 var unpackedPath = this.File.FilePath + ".unpacked.exe";

Steamless.Unpacker.Variant30.x64/Main.cs

@@ -432,7 +432,7 @@ namespace Steamless.Unpacker.Variant30.x64
             try
             {
                 // Rebuild the file sections..
-                this.File.RebuildSections();
+                this.File.RebuildSections(this.Options.DontRealignSections == false);
 
                 // Open the unpacked file for writing..
                 var unpackedPath = this.File.FilePath + ".unpacked.exe";

Steamless.Unpacker.Variant30.x86/Main.cs

@@ -437,7 +437,7 @@ namespace Steamless.Unpacker.Variant30.x86
             try
             {
                 // Rebuild the file sections..
-                this.File.RebuildSections();
+                this.File.RebuildSections(this.Options.DontRealignSections == false);
 
                 // Open the unpacked file for writing..
                 var unpackedPath = this.File.FilePath + ".unpacked.exe";

Steamless.Unpacker.Variant31.x64/Main.cs

@@ -434,7 +434,7 @@ namespace Steamless.Unpacker.Variant31.x64
             try
             {
                 // Rebuild the file sections..
-                this.File.RebuildSections();
+                this.File.RebuildSections(this.Options.DontRealignSections == false);
 
                 // Open the unpacked file for writing..
                 var unpackedPath = this.File.FilePath + ".unpacked.exe";

Steamless.Unpacker.Variant31.x86/Main.cs

@@ -433,7 +433,7 @@ namespace Steamless.Unpacker.Variant31.x86
             try
             {
                 // Rebuild the file sections..
-                this.File.RebuildSections();
+                this.File.RebuildSections(this.Options.DontRealignSections == false);
 
                 // Open the unpacked file for writing..
                 var unpackedPath = this.File.FilePath + ".unpacked.exe";

Steamless/View/MainView.xaml

@@ -84,12 +84,14 @@
                     <RowDefinition Height="Auto" />
                     <RowDefinition Height="Auto" />
                     <RowDefinition Height="Auto" />
+                    <RowDefinition Height="Auto" />
                 </Grid.RowDefinitions>
                 <CheckBox Grid.Row="0" Content="Verbose Output" Margin="2" ToolTip="If enabled, Steamless will allow logging of debug messages." IsChecked="{Binding Options.VerboseOutput}" />
                 <CheckBox Grid.Row="1" Content="Keep Bind Section" Margin="2" ToolTip="The bind section should be kept within the file after unpacking." IsChecked="{Binding Options.KeepBindSection}" />
                 <CheckBox Grid.Row="2" Content="Dump Payload To Disk" Margin="2" ToolTip="Dumps the payload to disk where the target file is located. (File will be saved with the .payload extension.)" IsChecked="{Binding Options.DumpPayloadToDisk}" />
                 <CheckBox Grid.Row="3" Content="Dump SteamDRMP.dll To Disk" Margin="2" ToolTip="Dumps the SteamDRMP.dll to disk where the target file is located." IsChecked="{Binding Options.DumpSteamDrmpToDisk}" />
                 <CheckBox Grid.Row="4" Content="Use Experimental Features" Margin="2" ToolTip="Enables the use of experimental features." IsChecked="{Binding Options.UseExperimentalFeatures}" />
+                <CheckBox Grid.Row="5" Content="Don't Realign Sections" Margin="2" ToolTip="Disables realignment of sections when unpacking." IsChecked="{Binding Options.DontRealignSections}" />
             </Grid>
         </GroupBox>