Windev 25 Dump Verified (2026)

Use this if you are a developer who has analyzed a crash dump or exported a project database.

Title: [Solved] Analysis of WinDev 25 Memory Dump – Issue Verified Body: Hey everyone,

Just sharing a solution for a recurring crash we experienced after migrating to WinDev 25.

The Issue: The application was crashing during the HExecuteQuery process. We generated a full memory dump (.dmp) via the WD debugger. windev 25 dump verified

The Verification: After analyzing the dump in WinDbg, we verified that the issue stemmed from a conflict with the new parallel execution threads in WD25. The stack trace pointed to an access violation in wd250vm.dll.

The Fix: We had to explicitly disable "Parallel HFSQL" in the project description (Project > Description > Advanced > HFSQL).

Hope this saves someone else a few hours of debugging! Use this if you are a developer who

The term "Verified" attached to a dump indicates a successful analysis of that crash data. In the context of WinDev 25, this usually relates to one of two scenarios:

Inspect loaded modules: lmv to list modules, versions, timestamps.

If crash in WDRT or WinDev DLL:

If crash in third‑party/native DLL:

If access violation:

For hangs: examine thread wait chains (~* e !locks, !stacks), check for mutex/IO waits, and thread stuck in message loop or synchronous call.

On [Date of crash] , the WinDev 25 application [App Name] encountered a fatal error, resulting in an unhandled exception and the generation of a memory dump file (.wdmp or system-generated .dmp). The dump was successfully verified as a valid crash dump corresponding to the application process at the time of failure.

Initial analysis confirms the crash was not caused by external system failure but by an internal execution error within the WinDev 25 runtime or application logic. The term "Verified" attached to a dump indicates

Based on dump analysis:

If you only want to check the integrity of a dump file without loading it into the database:

// Verify dump header and blocks
oDump is DumpFile
oDump.File = "D:\Backups\sales_dump.WDD"
IF oDump.Verify() = True THEN
    Info("Dump verified. Record count: ", oDump.TotalRecords)
    Info("Checksum: ", oDump.Checksum)
ELSE
    Error("Dump corrupted at block: ", oDump.CorruptedBlockIndex)
END

Note: The DumpFile class is available in WINDEV 25 Update 2 and later.

A verified dump is only as good as your ability to restore it. Once a month, perform a test restore on a sandbox server using:

HRestoreFile("SandBox.FIC", "last_verified_dump.WDD", hRestoreVerify)