Startup program entry details:

dla (tfswctrl.exe)

This page expands upon the information already available for this entry in the Pacman's Portal Windows start-up programs database.

Normally leave to run at start-up - typically required for the program to function properly or for security/safety reasons

For further information on how to identify and disable startup programs please visit the Introduction page.

Description:

Drive letter access to a UDF packet writer for CD-RW - from HP, Veritas (now Symantec) an others. Similar to Roxio's DirectCD and does the same thing. From HP - "This is a needed file as it controls the readability of the Combo drives. Without this file loading the end user will be able to burn CD's but wont be able to read them. The drive itself will be able to read store bought master Cd's without the file but not burnt ones"

Startup information:

Registry (Start → Run → regedit)

• Key(s): HKLM\Run
• Name: dla
• Data: C:\WINDOWS\system32\dla\tfswctrl.exe

MSConfig (Start → Run → msconfig → Startup)

• Startup Item (XP): tfswctrl
• Startup Item (Vista/7): N/A
• Command: C:\WINDOWS\system32\dla\tfswctrl.exe

Windows Defender (Start → All Programs → Windows Defender → Tools → Software Explorer)

• Name: tfswctrl.exe
• Startup Value: C:\WINDOWS\system32\dla\tfswctrl.exe

HijackThis (HJT) log examples:

O4 - HKLM\..\Run: [dla] C:\WINDOWS\system32\dla\tfswctrl.exe

Other information:

• File location: %System%\dla
• File properties "Description": Drive Letter Access Component
• Purpose: UDF packet writer
• Program disable option: None
• Shortcut(s) available: None
• Vendor/Publisher: Sonic Solutions
• Product(s): IBM DLA
• Tested: Yes

Note:

• %System% - refers to the System folder; by default this is C:\Windows\System (9x/Me), C:\Winnt\System32 (NT/2K), or C:\Windows\System32 (XP/Vista/7)
• HKLM refers to HKEY_LOCAL_MACHINE

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