DLL and PDB File Icons Missing


TylerJaacks

TylerJaacks

Well-known member
Local time
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Location
Ames, IA
OS
Windows 11 Pro
1712804970407.png
1712805049510.png
1712805070784.png
 

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At a glance

Windows 11 ProAMD RYZEN 9 5950XG.Skill Trident Z RGB 32GB (2x16GB) DDR4-3200ASUS ROG Strix RTX 2080 Ti
OS
Windows 11 Pro
Computer type
PC/Desktop
CPU
AMD RYZEN 9 5950X
Motherboard
GIGABYTE X570 AORUS ELITE
Memory
G.Skill Trident Z RGB 32GB (2x16GB) DDR4-3200
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ASUS ROG Strix RTX 2080 Ti
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ASUS ROG Swift PG279QZ 27" ASUS PB238Q 23"
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Samsung 970 EVO 1TB
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An example of a .dll [Data Link Library] file icon in C:\Windows\System32:

1712805837638.png
As shown there, not changeable. The 2 gears indicate it's part of the machine. I am pretty sure messing with .dll files used by Windows can let the user reinstall Windows. Looking at some of the file names in the image suggests a program has been installed and files have not properly registered with Windows.
 

My Computers My Computers

System One System Two

  • At a glance

    Win11 Pro RTM Version 24H2 Build 26100.4202Intel Core i5 11th Gen. 2.40GHz12GB
    OS
    Win11 Pro RTM Version 24H2 Build 26100.4202
    Computer type
    Laptop
    Manufacturer/Model
    Dell Vostro 3400
    CPU
    Intel Core i5 11th Gen. 2.40GHz
    Memory
    12GB
    Hard Drives
    256GB SSD NVMe M.2

  • At a glance

    Win11 Pro RTM Version 24H2 Build 26100.4202Intel Core i5 10th Gen. 2.90GHz16GBOnboard, no VGA, using a DisplayPort-to-VGA a...
    Operating System
    Win11 Pro RTM Version 24H2 Build 26100.4202
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Vostro 5890
    CPU
    Intel Core i5 10th Gen. 2.90GHz
    Memory
    16GB
    Graphics card(s)
    Onboard, no VGA, using a DisplayPort-to-VGA adapter
    Monitor(s) Displays
    24" Dell
    Hard Drives
    512GB SSD NVMe, 4TB Seagate HDD
    Browser
    Firefox, Edge
    Antivirus
    Windows Defender/Microsoft Security
You may just have a corrupted IconCache, clear that issue before diving in head first and messing with file associations.
 

My Computers My Computers

System One System Two

  • At a glance

    Windows 11 Enterprise 25H2 26200 7462Intel XEON E5-2699 v364GB Teamgroup UD4-3600NVIDIA GeForce GTX 1080 Ti
    OS
    Windows 11 Enterprise 25H2 26200 7462
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom Build
    CPU
    Intel XEON E5-2699 v3
    Motherboard
    ASUS X99-A
    Memory
    64GB Teamgroup UD4-3600
    Graphics Card(s)
    NVIDIA GeForce GTX 1080 Ti
    Sound Card
    Integrated
    Monitor(s) Displays
    ACER X34 Predator
    Screen Resolution
    3440 x 1440
    Hard Drives
    Crucial CT1000P 3P SSD8 1TB
    Crucial CT1000 BX500 SSD 1TB
    PSU
    GameMax Pro
    Case
    Fractal Design
    Cooling
    Corsair H110iGT + 6 140mm Fans
    Keyboard
    Corsair K4
    Mouse
    G-Skill G502
    Internet Speed
    300MBs
    Browser
    Chrome
    Antivirus
    OEM
    Other Info
    ASUS RT-AC87U Router

  • At a glance

    25H2 26200.50748GB
    Operating System
    25H2 26200.5074
    Computer type
    Laptop
    Manufacturer/Model
    ASUS X555LA
    Memory
    8GB
    Browser
    Chrome
    Antivirus
    OEM

My Computer My Computer

At a glance

Windows 11 ProAMD RYZEN 9 5950XG.Skill Trident Z RGB 32GB (2x16GB) DDR4-3200ASUS ROG Strix RTX 2080 Ti
OS
Windows 11 Pro
Computer type
PC/Desktop
CPU
AMD RYZEN 9 5950X
Motherboard
GIGABYTE X570 AORUS ELITE
Memory
G.Skill Trident Z RGB 32GB (2x16GB) DDR4-3200
Graphics Card(s)
ASUS ROG Strix RTX 2080 Ti
Monitor(s) Displays
ASUS ROG Swift PG279QZ 27" ASUS PB238Q 23"
Screen Resolution
2560x1440 1920x1080
Hard Drives
Samsung 970 EVO 1TB
Samsung 980 Pro 2TB
Samsung 870 EVO 1TB
Seagate Desktop HDD 4TB
Seagate IronWolf 10TB
PSU
Corsair RM 750W
Case
NZXT H710i Black
Cooling
NZXT Kraken Z63
Keyboard
Corsair K70 LUX RGB Blue
Mouse
Corsair Scimitar PRO RGB
Internet Speed
75 Mbps Up/Down
Browser
Mozilla Firefox
Antivirus
Windows Defender
Usually when the icon is blank/generic it means the association with the program that created it or that can open/work with it has been lost. Frequently a program's icon will be embedded in the .exe file that gets the program running, if the program won't start/run there's a problem that may be fixed by reinstalling.
 

My Computers My Computers

System One System Two

  • At a glance

    Win11 Pro RTM Version 24H2 Build 26100.4202Intel Core i5 11th Gen. 2.40GHz12GB
    OS
    Win11 Pro RTM Version 24H2 Build 26100.4202
    Computer type
    Laptop
    Manufacturer/Model
    Dell Vostro 3400
    CPU
    Intel Core i5 11th Gen. 2.40GHz
    Memory
    12GB
    Hard Drives
    256GB SSD NVMe M.2

  • At a glance

    Win11 Pro RTM Version 24H2 Build 26100.4202Intel Core i5 10th Gen. 2.90GHz16GBOnboard, no VGA, using a DisplayPort-to-VGA a...
    Operating System
    Win11 Pro RTM Version 24H2 Build 26100.4202
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Vostro 5890
    CPU
    Intel Core i5 10th Gen. 2.90GHz
    Memory
    16GB
    Graphics card(s)
    Onboard, no VGA, using a DisplayPort-to-VGA adapter
    Monitor(s) Displays
    24" Dell
    Hard Drives
    512GB SSD NVMe, 4TB Seagate HDD
    Browser
    Firefox, Edge
    Antivirus
    Windows Defender/Microsoft Security
I grabbed this off a machine with VS Community. Obviously you'll need to fix the path if you're using Pro or some other edition.

Code: 
[HKEY_CLASSES_ROOT\.pdb]
@="VisualStudio.pdb.11f20778"

[HKEY_CLASSES_ROOT\.pdb\PersistentHandler]
@="{098f2470-bae0-11cd-b579-08002b30bfeb}"


[HKEY_CLASSES_ROOT\VisualStudio.pdb.11f20778]
@="Program Debug Database"
"AlwaysShowExt"="1"

[HKEY_CLASSES_ROOT\VisualStudio.pdb.11f20778\DefaultIcon]
@="\"C:\\Program Files\\Microsoft Visual Studio\\2022\\Community\\Common7\\IDE\\VC\\vcpackages\\VCProject.dll\",20"
 

My Computer My Computer

At a glance

Windows 11 Enterprise 25H2 [rev. 8893]
OS
Windows 11 Enterprise 25H2 [rev. 8893]
That didn't work unfortunately
 

My Computer My Computer

At a glance

Windows 11 ProAMD RYZEN 9 5950XG.Skill Trident Z RGB 32GB (2x16GB) DDR4-3200ASUS ROG Strix RTX 2080 Ti
OS
Windows 11 Pro
Computer type
PC/Desktop
CPU
AMD RYZEN 9 5950X
Motherboard
GIGABYTE X570 AORUS ELITE
Memory
G.Skill Trident Z RGB 32GB (2x16GB) DDR4-3200
Graphics Card(s)
ASUS ROG Strix RTX 2080 Ti
Monitor(s) Displays
ASUS ROG Swift PG279QZ 27" ASUS PB238Q 23"
Screen Resolution
2560x1440 1920x1080
Hard Drives
Samsung 970 EVO 1TB
Samsung 980 Pro 2TB
Samsung 870 EVO 1TB
Seagate Desktop HDD 4TB
Seagate IronWolf 10TB
PSU
Corsair RM 750W
Case
NZXT H710i Black
Cooling
NZXT Kraken Z63
Keyboard
Corsair K70 LUX RGB Blue
Mouse
Corsair Scimitar PRO RGB
Internet Speed
75 Mbps Up/Down
Browser
Mozilla Firefox
Antivirus
Windows Defender

My Computers My Computers

System One System Two

  • At a glance

    Windows 11 Enterprise 25H2 26200 7462Intel XEON E5-2699 v364GB Teamgroup UD4-3600NVIDIA GeForce GTX 1080 Ti
    OS
    Windows 11 Enterprise 25H2 26200 7462
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom Build
    CPU
    Intel XEON E5-2699 v3
    Motherboard
    ASUS X99-A
    Memory
    64GB Teamgroup UD4-3600
    Graphics Card(s)
    NVIDIA GeForce GTX 1080 Ti
    Sound Card
    Integrated
    Monitor(s) Displays
    ACER X34 Predator
    Screen Resolution
    3440 x 1440
    Hard Drives
    Crucial CT1000P 3P SSD8 1TB
    Crucial CT1000 BX500 SSD 1TB
    PSU
    GameMax Pro
    Case
    Fractal Design
    Cooling
    Corsair H110iGT + 6 140mm Fans
    Keyboard
    Corsair K4
    Mouse
    G-Skill G502
    Internet Speed
    300MBs
    Browser
    Chrome
    Antivirus
    OEM
    Other Info
    ASUS RT-AC87U Router

  • At a glance

    25H2 26200.50748GB
    Operating System
    25H2 26200.5074
    Computer type
    Laptop
    Manufacturer/Model
    ASUS X555LA
    Memory
    8GB
    Browser
    Chrome
    Antivirus
    OEM
I did that and it didn't work.
 

My Computer My Computer

At a glance

Windows 11 ProAMD RYZEN 9 5950XG.Skill Trident Z RGB 32GB (2x16GB) DDR4-3200ASUS ROG Strix RTX 2080 Ti
OS
Windows 11 Pro
Computer type
PC/Desktop
CPU
AMD RYZEN 9 5950X
Motherboard
GIGABYTE X570 AORUS ELITE
Memory
G.Skill Trident Z RGB 32GB (2x16GB) DDR4-3200
Graphics Card(s)
ASUS ROG Strix RTX 2080 Ti
Monitor(s) Displays
ASUS ROG Swift PG279QZ 27" ASUS PB238Q 23"
Screen Resolution
2560x1440 1920x1080
Hard Drives
Samsung 970 EVO 1TB
Samsung 980 Pro 2TB
Samsung 870 EVO 1TB
Seagate Desktop HDD 4TB
Seagate IronWolf 10TB
PSU
Corsair RM 750W
Case
NZXT H710i Black
Cooling
NZXT Kraken Z63
Keyboard
Corsair K70 LUX RGB Blue
Mouse
Corsair Scimitar PRO RGB
Internet Speed
75 Mbps Up/Down
Browser
Mozilla Firefox
Antivirus
Windows Defender
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