VB Decompiler is decompiler for programs (EXE, DLL or OCX) written in Visual Basic 5.0 and 6.0 and disassembler for programs written on .NET technology. As you know, programs in Visual Basic can be compiled into interpreted p-code or into native code. .NET assembly always compiled to just in time compilable IL code.Since p-code consists of high-level commands, there is a real possibility to decompile it into the source code (of course, the names of variables and some functions will not be decompiled). VB Decompiler restores source code from p-code as much as possible precisely. And after some modifications you may try to compile generated code.
Key Features:
-Decompiling of the forms (frm and frx) and usercontrols (ctl, ctx)
-Code decompilation for the P-Code compiled applications. Recovery pseudo code to the standard Visual Basic instructions with a highest success rate. Processing COM OLE objects, API calls, etc.
-Native Code procedures disassembling (with powerfull Pentium Pro disassembler, with support of the MMX and FPU instruction sets)
-Partially Native Code decompilation (using code emulation engine)
-Disassembling Visual Studio .NET (VB, C#, etc.) applications
-Universal x86 unpacker for packed applications (supported UPX, NSPack and other popular compressing tools)
-Two decompilation schemes (with and without stack parsing)
-Recovery and edit the String References with unicode support
-Syntax coloring in decompiled code
-Recovery API calls. Recovery prototypes of most standard Win32 APIs
-Fast decompilation scheme
-Anti-decompilation features to protect your software (obfuscator)
-Powerfull HEX Editor with Copy/Paste and Undo/Redo features
-Save a decompiled data to the single file
-Save procedures list to the MAP file, IDA script or to the HIEW Names file
New in version 10.0
Decompile assembler functions: cdq, sar, sal, leaved, sahf, fcomp, fldz functions (Native Code)
Decompile assembler setXX (setz, setnz, setle, etc) functions (Native Code)
Decompile msvbvm functions: __vbaVarVargNofree, __vbaStrR4, __vbaDerefAry,
vbaStrVarCopy, __vbaPrintObj, __vbaLateMemStAd, __vbaCastObj,
vbaChkstk, __vbaLateMemCallLd, __vbaLateMemCallSt, __vbaVarLateMemCallLdRf functions (Native Code)
Decompile msvbvm functions: VarLateMemCallLdVar, CAdVar (P-Code)
Decompiling arrays and operations with arrays (Native Code)
Additional preprocessing for creating objects with __vbaNew2 (Native Code)
Filtering subtracting zero (Native Code)
Support decompilation for 'ReDim' function for multi-dimension dynamic arrays (Native and P-Code)
Increase COM objects processing speed for internal components like Form, TextBox, etc (Native Code)
Save and recovery cursor position in decompiled/disassembled
code after calling tracer
Save and recovery cursor position in decompiled/disassembled
code after jumping forward/backward by clicking name of procedure/function
Refactoring and increase speed of most code
Fixed and rewriten all help files
Procedure optimizer also optimize code with global variables (Native Code)
Processing save to global variable via 32 bit address (Native Code)
Processing "ByRef" double float varibles (Native Code)
Find more functions in modules (Native Code)
Processing push to stack via 'mov reg, esp; mov [reg+XXXXXXXXh], value" (Native Code)
New menu icons and splash screen
BugFix: Correctly process "If ... End If" when "End If" at end address of function (Native Code)
BugFix: Process variables (var_*) in "If ... Then" commands (Native Code)
BugFix: Correctly decompile code with calls to properties of Labels
BugFix: Processing internal GUIDs of Forms and UserControls (P-Code)
BugFix: Processing msvbvm functions: __vbaFPFix, __vbaFPInt, rtcDoEvents (Native Code)
BugFix: Processing assembler functions: fstp (Native Code)
BugFix: Not support files with more than 20000 controls in all forms
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