nvpatch Windows 7 support

Commit: c710d2a95f863e9026fcafb9223c1df6203ce668 electron: 22.3.27 electron-builder: 25.0.5

I use nvpatch for my x64 build with Electron 22 which supports Windows 7. The resulting exe file can run on Windows 8 and more modern systems but doesn't start on Windows 7 64-bit. If I do not patch the exe file, it works on Windows 7.

Sep 13 '24 12:09 bulbigood

Not sure why that would be off hand. Do you get an error messages (either directly on screen or in Windows event logs?)

Sep 14 '24 01:09 toptensoftware

Unfortunately, exe just won't start without any errors. I didn't find anything in the logs. There is nothing in Windows Events regarding my exe file.

Sep 26 '24 12:09 bulbigood

Perhaps try running dumpbin /headers on Windows 7 on the original and patched exe and see if it shows up anything odd?

Unfortunately, I don't have much time right now to dig deeper but I'll take a look when I get a chance.

Sep 27 '24 00:09 toptensoftware

I installed MSVC Build Tools 2019 to get dumpbin. It's the latest version available on Windows 7. There are results:

Non-patched (working) exe

Dump of file Program.exe

PE signature found

File Type: EXECUTABLE IMAGE

FILE HEADER VALUES 8664 machine (x64) F number of sections 652438A7 time date stamp Mon Oct 9 20:30:15 2023 0 file pointer to symbol table 0 number of symbols F0 size of optional header 22 characteristics Executable Application can handle large (>2GB) addresses

OPTIONAL HEADER VALUES 20B magic # (PE32+) 14.00 linker version 7A67200 size of code 1C33200 size of initialized data 0 size of uninitialized data 4045F50 entry point (0000000144045F50) 1000 base of code 140000000 image base (0000000140000000 to 0000000149A51FFF) 1000 section alignment 200 file alignment 5.02 operating system version 0.00 image version 5.02 subsystem version 0 Win32 version 9A52000 size of image 400 size of headers 0 checksum 2 subsystem (Windows GUI) C160 DLL characteristics High Entropy Virtual Addresses Dynamic base NX compatible Control Flow Guard Terminal Server Aware 800000 size of stack reserve 1000 size of stack commit 100000 size of heap reserve 1000 size of heap commit 0 loader flags 10 number of directories 903A52A [ 35819] RVA [size] of Export Directory 906FD43 [ 168] RVA [size] of Import Directory 98F9000 [ 671AC] RVA [size] of Resource Directory 9503000 [ 3E72F4] RVA [size] of Exception Directory 0 [ 0] RVA [size] of Certificates Directory 9961000 [ F0DCC] RVA [size] of Base Relocation Directory 8F9BB88 [ 1C] RVA [size] of Debug Directory 0 [ 0] RVA [size] of Architecture Directory 0 [ 0] RVA [size] of Global Pointer Directory 8F9B678 [ 28] RVA [size] of Thread Storage Directory 7A6A020 [ 138] RVA [size] of Load Configuration Directory 0 [ 0] RVA [size] of Bound Import Directory 9071360 [ 14B0] RVA [size] of Import Address Table Directory 9035C88 [ 480] RVA [size] of Delay Import Directory 0 [ 0] RVA [size] of COM Descriptor Directory 0 [ 0] RVA [size] of Reserved Directory

SECTION HEADER #1 .text name 7A671E0 virtual size 1000 virtual address (0000000140001000 to 0000000147A681DF) 7A67200 size of raw data 400 file pointer to raw data (00000400 to 07A675FF) 0 file pointer to relocation table 0 file pointer to line numbers 0 number of relocations 0 number of line numbers 60000020 flags Code Execute Read

SECTION HEADER #2 .rdata name 1646538 virtual size 7A69000 virtual address (0000000147A69000 to 00000001490AF537) 1646600 size of raw data 7A67600 file pointer to raw data (07A67600 to 090ADBFF) 0 file pointer to relocation table 0 file pointer to line numbers 0 number of relocations 0 number of line numbers 40000040 flags Initialized Data Read Only

Debug Directories

    Time Type        Size      RVA  Pointer
-------- ------- -------- -------- --------
652438A7 cv            45 08F9BBA4  8F9A1A4    Format: RSDS, {8BC5E17A-7D32-51DB-4C4C-44205044422E}, 1, C:\projects\src\out\Default\electron.exe.pdb

SECTION HEADER #3 .data name 45209C virtual size 90B0000 virtual address (00000001490B0000 to 000000014950209B) A8C00 size of raw data 90ADC00 file pointer to raw data (090ADC00 to 091567FF) 0 file pointer to relocation table 0 file pointer to line numbers 0 number of relocations 0 number of line numbers C0000040 flags Initialized Data Read Write

SECTION HEADER #4 .pdata name 3E72F4 virtual size 9503000 virtual address (0000000149503000 to 00000001498EA2F3) 3E7400 size of raw data 9156800 file pointer to raw data (09156800 to 0953DBFF) 0 file pointer to relocation table 0 file pointer to line numbers 0 number of relocations 0 number of line numbers 40000040 flags Initialized Data Read Only

SECTION HEADER #5 .00cfg name 28 virtual size 98EB000 virtual address (00000001498EB000 to 00000001498EB027) 200 size of raw data 953DC00 file pointer to raw data (0953DC00 to 0953DDFF) 0 file pointer to relocation table 0 file pointer to line numbers 0 number of relocations 0 number of line numbers 40000040 flags Initialized Data Read Only

SECTION HEADER #6 .gxfg name 4200 virtual size 98EC000 virtual address (00000001498EC000 to 00000001498F01FF) 4200 size of raw data 953DE00 file pointer to raw data (0953DE00 to 09541FFF) 0 file pointer to relocation table 0 file pointer to line numbers 0 number of relocations 0 number of line numbers 40000040 flags Initialized Data Read Only

SECTION HEADER #7 .retplne name C0 virtual size 98F1000 virtual address (00000001498F1000 to 00000001498F10BF) 200 size of raw data 9542000 file pointer to raw data (09542000 to 095421FF) 0 file pointer to relocation table 0 file pointer to line numbers 0 number of relocations 0 number of line numbers 0 flags

SECTION HEADER #8 .rodata name 11C0 virtual size 98F2000 virtual address (00000001498F2000 to 00000001498F31BF) 1200 size of raw data 9542200 file pointer to raw data (09542200 to 095433FF) 0 file pointer to relocation table 0 file pointer to line numbers 0 number of relocations 0 number of line numbers 60000020 flags Code Execute Read

SECTION HEADER #9 .tls name 289 virtual size 98F4000 virtual address (00000001498F4000 to 00000001498F4288) 400 size of raw data 9543400 file pointer to raw data (09543400 to 095437FF) 0 file pointer to relocation table 0 file pointer to line numbers 0 number of relocations 0 number of line numbers C0000040 flags Initialized Data Read Write

SECTION HEADER #A .voltbl name 52 virtual size 98F5000 virtual address (00000001498F5000 to 00000001498F5051) 200 size of raw data 9543800 file pointer to raw data (09543800 to 095439FF) 0 file pointer to relocation table 0 file pointer to line numbers 0 number of relocations 0 number of line numbers 0 flags

SECTION HEADER #B CPADinfo name 38 virtual size 98F6000 virtual address (00000001498F6000 to 00000001498F6037) 200 size of raw data 9543A00 file pointer to raw data (09543A00 to 09543BFF) 0 file pointer to relocation table 0 file pointer to line numbers 0 number of relocations 0 number of line numbers C0000040 flags Initialized Data Read Write

SECTION HEADER #C _RDATA name F4 virtual size 98F7000 virtual address (00000001498F7000 to 00000001498F70F3) 200 size of raw data 9543C00 file pointer to raw data (09543C00 to 09543DFF) 0 file pointer to relocation table 0 file pointer to line numbers 0 number of relocations 0 number of line numbers 40000040 flags Initialized Data Read Only

SECTION HEADER #D malloc_h name EA virtual size 98F8000 virtual address (00000001498F8000 to 00000001498F80E9) 200 size of raw data 9543E00 file pointer to raw data (09543E00 to 09543FFF) 0 file pointer to relocation table 0 file pointer to line numbers 0 number of relocations 0 number of line numbers 60000020 flags Code Execute Read

SECTION HEADER #E .rsrc name 671AC virtual size 98F9000 virtual address (00000001498F9000 to 00000001499601AB) 67200 size of raw data 9544000 file pointer to raw data (09544000 to 095AB1FF) 0 file pointer to relocation table 0 file pointer to line numbers 0 number of relocations 0 number of line numbers 40000040 flags Initialized Data Read Only

SECTION HEADER #F .reloc name F0DCC virtual size 9961000 virtual address (0000000149961000 to 0000000149A51DCB) F0E00 size of raw data 95AB200 file pointer to raw data (095AB200 to 0969BFFF) 0 file pointer to relocation table 0 file pointer to line numbers 0 number of relocations 0 number of line numbers 42000040 flags Initialized Data Discardable Read Only

Summary

    1000 .00cfg
  453000 .data
    5000 .gxfg
  3E8000 .pdata
 1647000 .rdata
   F1000 .reloc
    1000 .retplne
    2000 .rodata
   68000 .rsrc
 7A68000 .text
    1000 .tls
    1000 .voltbl
    1000 CPADinfo
    1000 _RDATA
    1000 malloc_h

Patched (not working) exe

Dump of file Program.exe

PE signature found

File Type: EXECUTABLE IMAGE

FILE HEADER VALUES 8664 machine (x64) 10 number of sections 652438A7 time date stamp Mon Oct 9 20:30:15 2023 0 file pointer to symbol table 0 number of symbols F0 size of optional header 22 characteristics Executable Application can handle large (>2GB) addresses

OPTIONAL HEADER VALUES 20B magic # (PE32+) 14.00 linker version 7A67200 size of code 1C68C00 size of initialized data 0 size of uninitialized data 4045F50 entry point (0000000144045F50) 1000 base of code 140000000 image base (0000000140000000 to 0000000149A87FFF) 1000 section alignment 200 file alignment 5.02 operating system version 0.00 image version 5.02 subsystem version 0 Win32 version 9A88000 size of image 400 size of headers 0 checksum 2 subsystem (Windows GUI) C160 DLL characteristics High Entropy Virtual Addresses Dynamic base NX compatible Control Flow Guard Terminal Server Aware 800000 size of stack reserve 1000 size of stack commit 100000 size of heap reserve 1000 size of heap commit 0 loader flags 10 number of directories 9A03008 [ 35862] RVA [size] of Export Directory 906FD43 [ 168] RVA [size] of Import Directory 98F9000 [ 671AC] RVA [size] of Resource Directory 9503000 [ 3E72F4] RVA [size] of Exception Directory 0 [ 0] RVA [size] of Certificates Directory 9961000 [ F0DCC] RVA [size] of Base Relocation Directory 8F9BB88 [ 1C] RVA [size] of Debug Directory 0 [ 0] RVA [size] of Architecture Directory 0 [ 0] RVA [size] of Global Pointer Directory 8F9B678 [ 28] RVA [size] of Thread Storage Directory 7A6A020 [ 138] RVA [size] of Load Configuration Directory 0 [ 0] RVA [size] of Bound Import Directory 9071360 [ 14B0] RVA [size] of Import Address Table Directory 9035C88 [ 480] RVA [size] of Delay Import Directory 0 [ 0] RVA [size] of COM Descriptor Directory 0 [ 0] RVA [size] of Reserved Directory

SECTION HEADER #1 .text name 7A671E0 virtual size 1000 virtual address (0000000140001000 to 0000000147A681DF) 7A67200 size of raw data 400 file pointer to raw data (00000400 to 07A675FF) 0 file pointer to relocation table 0 file pointer to line numbers 0 number of relocations 0 number of line numbers 60000020 flags Code Execute Read

SECTION HEADER #2 .rdata name 1646538 virtual size 7A69000 virtual address (0000000147A69000 to 00000001490AF537) 1646600 size of raw data 7A67600 file pointer to raw data (07A67600 to 090ADBFF) 0 file pointer to relocation table 0 file pointer to line numbers 0 number of relocations 0 number of line numbers 40000040 flags Initialized Data Read Only

Debug Directories

    Time Type        Size      RVA  Pointer
-------- ------- -------- -------- --------
652438A7 cv            45 08F9BBA4  8F9A1A4    Format: RSDS, {8BC5E17A-7D32-51DB-4C4C-44205044422E}, 1, C:\projects\src\out\Default\electron.exe.pdb