Issue with Windows 11

Issue with Windows 11 SearchSearch
Author Message
John Bittner
New member
Username: Johnbittner

Post Number: 1
Registered: 04-2026
Posted on Tuesday, April 14, 2026 - 07:42 pm:   

Were running NowSMS & MMS gateway, the latest version.

OS Name: Microsoft Windows 11 Enterprise
OS Version: 10.0.26200 N/A Build 26200
OS Manufacturer: Microsoft Corporation

Having an issue with MMSC crashing. The service shows running but in the windows logs we get these errors.
Also when you see if 25 or 8080 is listening, its not or will not answer to telnet tests.

Uninstalled / wiped NowSMS directory and reinstalled... Same issue.

Any Idea?

John Bittner
Xaccel

Faulting application name: MMSC.EXE, version: 0.0.0.0, time stamp: 0x59735850
Faulting module name: SMSUSER.dll, version: 0.0.0.0, time stamp: 0x59735850
Exception code: 0xc0000005
Fault offset: 0x00002840
Faulting process id: 0x1FA4
Faulting application start time: 0x1DCCC3775173375
Faulting application path: C:\Program Files (x86)\NowSMS\MMSC.EXE
Faulting module path: C:\Program Files (x86)\NowSMS\SMSUSER.dll
Report Id: 1147984b-d3a7-4400-bab5-a02fad070f57
Faulting package full name:
Faulting package-relative application ID:




Fault bucket 1609342757917492117, type 1
Event Name: APPCRASH
Response: Not available
Cab Id: 0
Problem signature:
P1: MMSC.EXE
P2: 0.0.0.0
P3: 59735850
P4: SMSUSER.dll
P5: 0.0.0.0
P6: 59735850
P7: c0000005
P8: 00002840
P9:
P10:
Attached files:
\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER.8dc6ddd6-5c22-48ad-b936-2fa03317b2f6.tmp.dmp
\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER.34a014aa-cad6-417e-bb2b-28a4f858456e.tmp.WERInternalMetadata.xml
\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER.c71de3cb-0f02-44ad-a967-245a59c17e63.tmp.csv
\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER.088b9037-2760-4f17-aebd-b9b5c1f0e9ba.tmp.txt
\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER.ddac302b-1439-4dec-847d-e42a11a29492.tmp.xml
These files may be available here:
\?\C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_MMSC.EXE_2afb1a1ebb7a8f48f75e546fc7945ad903f29ec_f6e536e6_48611f96-85c4-4a1c-b7c3-19336877e457
Analysis symbol:
Rechecking for solution: 0
Report Id: 98a0e9fb-c008-403d-a769-849760b44675
Report Status: 268435456
Hashed bucket: 70c4ed83cd5190ba565588b62f850395
Cab Guid: 0
Bryce Norwood - NowSMS Support
Board Administrator
Username: Bryce

Post Number: 8607
Registered: 10-2002
Posted on Thursday, April 16, 2026 - 11:47 pm:   

Hi John,

Apologies for the delay in response. We are investigating, but do not yet have an ETA for a solution.


Regards,

Bryce
Bryce Norwood - NowSMS Support
Board Administrator
Username: Bryce

Post Number: 8608
Registered: 10-2002
Posted on Friday, April 17, 2026 - 06:58 pm:   

Hi John,

A preliminary update to fix this Windows 11 compatibiliity issue has been posted at https://nowsms.com/download/nowsms20260417.zip

We have identified the issue that caused the MMSC to hang or crash at startup, which is fixed with this update.

Regards,

Bryce Norwood
NowSMS Support

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