XP missing usbpen drive

Theres many reasons. but this fixed one for me.

I could see usbpen in disk manager, but not listed in explorer.

run regedit, goto HKEY_LOCAL_MACHINE\SYSTEM\MountedDevices, here is everything attached.

the usbpen may be listed as something like #{efab6094-5e12-11df-86ee-0019700b351d}

you will need to guess, be correct! you might be able to get info from DeviceManager->Disk drives->Your usb key name->properties->details->Device Instance ID

change the registery entry to \DosDevices\J: (or whatever drive is available instead of J)

You will need a reboot

MMC cannot find ......msc (XP)

run

Regsvr32 "C:\WINDOWS\system32\msxml3.dll"

will work straight away - no restart needed.

More visual studio recent projects

Go to Tools->Options->Environment->General

find recent files area, change value next to "items shown in recently used list" to 20.