Adding file extensions using registry entries?

kaka55tyanh · 07 Nov 2015

I've recently upgraded from Windows XP to 10 (64-bit), and the .reg files I've crafted for adding custom file associations don't work anymore. What's changed? How do I make them work again? Sample:

Code:

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Classes\.pdf]
@="user.sumatra.pdf"

[HKEY_CURRENT_USER\Software\Classes\user.sumatra.pdf]
@="PDF Document"

[HKEY_CURRENT_USER\Software\Classes\user.sumatra.pdf\\DefaultIcon]
@="F:\\BIN\\SumatraPDF\\SumatraPDF.exe,1"

[HKEY_CURRENT_USER\Software\Classes\user.sumatra.pdf\shell]

[HKEY_CURRENT_USER\Software\Classes\user.sumatra.pdf\shell\open]

[HKEY_CURRENT_USER\Software\Classes\user.sumatra.pdf\shell\open\command]
@="\"F:\\BIN\\SumatraPDF\\SumatraPDF.exe\" \"%1\""

XP1 · 30 Nov 2015

Add this at the top:

Code:

[-HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.pdf]

Like:

Code:

Windows Registry Editor Version 5.00

[-HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\FileExts\.pdf]

[HKEY_CURRENT_USER\Software\Classes\.pdf]
@="user.sumatra.pdf"

[HKEY_CURRENT_USER\Software\Classes\user.sumatra.pdf]
@="PDF Document"

[HKEY_CURRENT_USER\Software\Classes\user.sumatra.pdf\\DefaultIcon]
@="F:\\BIN\\SumatraPDF\\SumatraPDF.exe,1"

[HKEY_CURRENT_USER\Software\Classes\user.sumatra.pdf\shell]

[HKEY_CURRENT_USER\Software\Classes\user.sumatra.pdf\shell\open]

[HKEY_CURRENT_USER\Software\Classes\user.sumatra.pdf\shell\open\command]
@="\"F:\\BIN\\SumatraPDF\\SumatraPDF.exe\" \"%1\""

Source:
The AppSense Bigot: Deploying per-user file type associations (FTAs) on XenApp 7.6 Server 2012 R2 (slightly reloaded)

Adding file extensions using registry entries?

Adding file associations using registry entries?