I have Ultimate Doom, Doom 2, and shareware Heretic.
First of all, I was trying to learn how to convert wad files from Doom 1 to Doom 2 because I have Doom 1 files and I'm working on this page: http://www.wolfenstein3d.co.uk/adds_DOOM2.htm .
I have a CD back from the year 1995. A lot of Doom and Doom 2 add-on CDs were made at that time by independent companies and sold in software stores. The CD is Doom 2 Mania Vol 1, which overall is OK, I guess. However, don't use the Doom1to2 conversion program that comes on that and similiar CDs. I was learning how to convert wads over. You must have Doom 1 and Doom 2 for it to work. The program actually did convert the level to Doom 2, however it screwed up my computer and it's much, much slower for Doom 2 and Heretic. It's especially slower whenever there's an enemy with sound. I tried erasing Doom 2 from a folder and reinstalling it to that folder. The beginning of level 1 began to look OK, but as soon as I shot the first zombieman, it dramatically slowed down with the sound. I even ran two virus scan programs to try to see what's wrong, and Doom 2 and Heretic are still messed up.
On a scale of 1 to 10, I would give this program a 0 because it's outdated or counterproductive. It has a weird disclaimer including that it works only on 90% of the wads.
In 1995 if you knew somebody who knew somebody who had a particular CD, you could play 27 levels of Doom in Doom 2. It seems to be more trouble than its worth.
To make a long story short, don't use this Doom 1 to 2 conversion program. I don't even think it's on the internet anymore. Actually, don't use any C or C++ progam unless you know where you've gotten it and you really know what you're doing.
I'm sorry that I'm the one that mentions Doom the most on the Wolf3D Haven forums.
First of all, I was trying to learn how to convert wad files from Doom 1 to Doom 2 because I have Doom 1 files and I'm working on this page: http://www.wolfenstein3d.co.uk/adds_DOOM2.htm .
I have a CD back from the year 1995. A lot of Doom and Doom 2 add-on CDs were made at that time by independent companies and sold in software stores. The CD is Doom 2 Mania Vol 1, which overall is OK, I guess. However, don't use the Doom1to2 conversion program that comes on that and similiar CDs. I was learning how to convert wads over. You must have Doom 1 and Doom 2 for it to work. The program actually did convert the level to Doom 2, however it screwed up my computer and it's much, much slower for Doom 2 and Heretic. It's especially slower whenever there's an enemy with sound. I tried erasing Doom 2 from a folder and reinstalling it to that folder. The beginning of level 1 began to look OK, but as soon as I shot the first zombieman, it dramatically slowed down with the sound. I even ran two virus scan programs to try to see what's wrong, and Doom 2 and Heretic are still messed up.
On a scale of 1 to 10, I would give this program a 0 because it's outdated or counterproductive. It has a weird disclaimer including that it works only on 90% of the wads.
In 1995 if you knew somebody who knew somebody who had a particular CD, you could play 27 levels of Doom in Doom 2. It seems to be more trouble than its worth.
To make a long story short, don't use this Doom 1 to 2 conversion program. I don't even think it's on the internet anymore. Actually, don't use any C or C++ progam unless you know where you've gotten it and you really know what you're doing.
I'm sorry that I'm the one that mentions Doom the most on the Wolf3D Haven forums.