web
You’re offline. This is a read only version of the page.
close
Skip to main content
Community site session details

Community site session details

Session Id :
Small and medium business | Business Central, N...
Suggested answer

BC Web Client Login Issue

(1) ShareShare
ReportReport
Posted on by

if you are using BC web client and you start facing abnormal behavior when trying to log in and unexpected errors please find the below analysis

SYMPTOM:

Web Client sporadically does not start. Error message:
Error accessing the website
Type: System.IO.IOException
Message: The process cannot access the file "C: \ inetpub \ wwwroot \ BC \ wwwroot \ Resources \ ExtractedResources \ Action_8ball_32x32.png" because it is being used by another process.

RESOLUTION:

Sometimes the Windows Defender held a lock on one of the Resource files, so please Add the BC (C:\inetpub\wwwroot)path as an exception to Windows defender to resolve the issue
 
Please note: The ExtractedResources is not a folder coming with the installation. It is a working folder, where the client application unpacks bitmaps, and then IIS fetches it from there later on.

IIS needs to have permissions to write to it, the IIS_IUSRS account would require Read+Modify permissions for that folder.

I have the same question (0)
  • Suggested answer
    Marco Mels Profile Picture
    on at
    RE: BC Web Client Login Issue

    Thank you for sharing Islam!

  • YUN ZHU Profile Picture
    92,445 Super User 2025 Season 2 on at
    RE: BC Web Client Login Issue

    Thanks for sharing.

    Noted.

Under review

Thank you for your reply! To ensure a great experience for everyone, your content is awaiting approval by our Community Managers. Please check back later.

Helpful resources

Quick Links

Responsible AI policies

As AI tools become more common, we’re introducing a Responsible AI Use…

Abhilash Warrier – Community Spotlight

We are honored to recognize Abhilash Warrier as our Community Spotlight honoree for…

Leaderboard > Small and medium business | Business Central, NAV, RMS

#1
Rishabh Kanaskar Profile Picture

Rishabh Kanaskar 4,237

#2
Nimsara Jayathilaka. Profile Picture

Nimsara Jayathilaka. 3,425

#3
Sumit Singh Profile Picture

Sumit Singh 2,907

Last 30 days Overall leaderboard

Featured topics

Product updates

Dynamics 365 release plans